55mm f/1.4 - Lens PENTAX - Free user manual and instructions

Product Type	Interchangeable Lens
Brand	Pentax
Model	DA* 55mm f/1.4 SDM
Focal Length	55mm (equivalent to approx. 84.5mm in 35mm format)
Lens Construction	9 elements in 8 groups
Angle of View	29°
Maximum Aperture	f/1.4
Minimum Aperture	f/22
Mount Type	KAF3-mount
Minimum Focus Distance	0.45m (1.48ft)
Maximum Magnification	Approx. 0.17x
Filter Size	58mm
Lens Hood	Bayonet type PH-RBH 58mm
Dimensions (Diameter x Length)	70.5mm x 66mm (2.8in x 2.6in)
Weight	Approx. 375g (13.2oz) without hood; approx. 420g (14.8oz) with hood
Autofocus Motor	Supersonic Direct-drive Motor (SDM) for quiet AF
Focus System	Quick-Shift Focus System for manual fine-tuning after AF
Aperture Blades	Circular aperture for smooth bokeh
Weather Resistance	Dust-proof and water-resistant construction
Compatibility	PENTAX digital SLR cameras only; not for film SLRs
Safety Warning	Never look at the sun through the lens; risk of eye damage
Storage and Maintenance	Store in dry, well-ventilated place; use desiccant; avoid organic solvents for cleaning
Included Accessories	Lens cap (front), lens mount cap

Frequently Asked Questions - 55mm f/1.4 PENTAX

Can the DA* 55mm f/1.4 SDM lens be used with film SLR cameras?

No, this lens is exclusively designed for PENTAX digital SLR cameras and is not compatible with film SLR cameras.

How do I use the Quick-Shift Focus System?

After achieving autofocus by pressing the shutter button halfway, keep the button pressed and manually turn the focusing ring to fine-tune focus. Then press the button fully to take the picture.

Is the lens weather-sealed?

Yes, the DA* 55mm f/1.4 SDM features dust-proof and water-resistant construction with individual seals on each part.

What filter size does this lens use?

The filter thread size is 58mm.

What is the minimum focusing distance?

The minimum focus distance is 0.45 m (1.48 ft) from the camera's image sensor.

How do I attach the lens hood?

Align the index mark on the hood with the attaching index on the lens, push straight, then turn clockwise until it clicks into place.

Can I use the built-in flash with this lens and the hood attached?

It is not recommended to use the lens hood with the built-in flash as it may cause vignetting. Remove the hood when using the built-in flash.

How should I clean the lens?

Use a blower brush to remove dust. For smudges, use a soft, dry cloth. Never use organic solvents like thinner, alcohol, or benzine.

What is the best way to store the lens?

Store in a dry, well-ventilated place. Use a desiccant in a dry cabinet or airtight container to prevent mildew. Avoid high temperature and humidity.

Does the lens come with a warranty?

The lens is covered by the standard manufacturer's warranty. For details, consult your dealer or the official PENTAX website.

USER MANUAL 55mm f/1.4 PENTAX

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PENTAX

smc PENTAX-DA INTERCHANGEABLE LENS

OPERATING MANUAL

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FOREWORD

Thank you for purchasing the smc PENTAX-DA lens.

Please read this operating manual carefully before using the lens to ensure that it is used properly. In addition, also refer to your camera operating manual.

The smc PENTAX-DA lens can be used exclusively with PENTAX digital SLR cameras. This lens is not compatible with film SLR cameras.

• In this operating manual, "smc PENTAX-DA lens" is shortened to "DA lens."
• Illustrations shown herein may differ from the actual appearance.
• PENTAX and smc PENTAX are trademarks of HOYA CORPORATION.
  • SDM is a trademark of HOYA CORPORATION.

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USING YOUR LENS SAFELY

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Although we have carefully designed these lenses for safe operation, please pay special attention to items marked with the following symbols when using this product.

WARNING This symbol indicates precautions that if not followed, could result in serious injuries to the user.

CAUTION This symbol indicates precautions that if not followed, could result in minor or medium injuries to the user or damage to the equipment.

WARNING

- Never look at the sun through the lens mounted on the camera for a long time. Serious damage to your eyes or total loss of eyesight may occur, particularly when looking directly through the lens.

CAUTION

- Do not leave the lens in direct sunlight without the lens cap. Direct sunlight passing through the lens will be intensified, and should it focus on flammable materials, fire may occur.

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2 PRECAUTIONS AND LENS MAINTENANCE

1. Storage and mildew prevention
   • Take the lens out of the protective case or camera bag, and store it in a dry, well-ventilated place.
2. Avoid storing the lens in a poorly ventilated location such as a closet, wardrobe, drawer, vehicle, or where insect repellent or medicine is kept.
3. Avoid storing the lens in areas of high temperature and humidity, where there is a risk of mildew growth. Store the lens with a desiccant in a dry cabinet, airtight container, or plastic bag. (Leaving a saturated desiccant in the storage container can cause damage to the lens. Be sure to read the instructions that come with the desiccant before use.)
4. Be careful when handling lenses that are not dust-proof, water-resistant, or do not have simplified weather-resistant construction in the rain, fog or environments in which sand or dust is in the air.
5. When the lens is not attached to the camera body, attach both the supplied lens cap and lens mount cap to protect it from dust, etc.
6. Never use any organic solvent such as thinner, alcohol, or benzine, etc. to remove dust on the lens.
7. The lens is a precise optical instrument. Be careful not to let it fall, or subject it to strong shocks or pressure. Use a cushion or similar pad to protect the lens from the vibrations of motorcycles, automobiles, boats, etc.
8. Avoid subjecting the lens to rapid changes in temperature, otherwise condensation can occur on both the inside and the outside of the lens. Put the lens in a plastic bag or camera bag, and take it out after the lens has reached ambient temperature.
9. Do not leave the camera with the lens cap off attached to a tripod or other rigid camera support. The inner parts of the camera can be damaged by direct sunlight.
10. Have the lens inspected by a dealer every one or two years to maintain its high performance.

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CONTENTS

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FOREWORD

USING YOUR LENS SAFELY 1

PRECAUTIONS AND LENS MAINTENANCE 2

FEATURES OF THE smc PENTAX-DA LENS 6

About dustproof, water resistance, and simplified weather resistance 7

smc PENTAX-DA LENS 8

About the DA lens mount 9

About lenses with a supersonic motor 10

Precautions for using lenses equipped with a supersonic motor on the K10D.... 11

MOUNTING AND REMOVING THE LENS 12

LENS CAP 13

Attaching the dedicated lens cap to DA 15mm f/4ED AL Limited 14

Attaching the dedicated lens cap to DA 40mm f/2.8 Limited 14

FOCUSING 15

Changing the Focus Mode 15

For the DA★ lens 15

Using Autofocus 16

Using Manual Focus 18

Using the Quick-Shift Focus System 18

How to use the Quick-Shift Focus System 19

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DA★ 200mm f/2.8ED [IF] SDM, DA★ 300mm f/4ED [IF] SDM focusing ..... 21

Precautions on close-distance scale 22

ZOOM LENS 23

About the zoom ring 24

MACRO LENS 25

Magnification Scale 25

ATTACHING THE LENS HOOD 26

Screw-on Type (DA 70mm f/2.4 Limited dedicated lens hood) 26

Screw-on Type (DA 40mm f/2.8 Limited dedicated lens hood) 27

Bayonet Type 27

Bayonet Type (DA 21mm f/3.2 AL Limited dedicated lens hood) 28

About the PL filter window 29

Built-in lens hood 31

FILTERS 32

Precaution on filters 32

Attaching the 30.5mm filter to the DA 40mm f/2.8 Limited lens 32

Attaching a filter and the dedicated lens hood to the DA 21mm f/3.2

AL Limited lens 33

Attaching a filter and the dedicated lens hood to the DA 70mm f/2.4

Limited lens 34

Circular polarizing filters and vignetting 35

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Compatibility table for PENTAX circular polarizing filters 36

PRECAUTIONS WHEN USING THE LENS WITH A FLASH 40

Built-in Flash 40

External Flash 40

Compatibility of DA Lenses with the Built-in Flash 42

TRIPOD MOUNT 44

Removing the Tripod Mount 45

MAIN SPECIFICATIONS 46

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6 FEATURES OF THE smc PENTAX-DA LENS

• The smc PENTAX-DA lens is an interchangeable lens specifically designed for digital cameras. Its image circle is specialized for image sensors in PENTAX digital SLR cameras and its optical system is optimized for the characteristics of digital images.
• When autofocusing is finished, it is possible to make fine adjustment by hand using the "Quick-Shift Focus System" (see page 19 for details).
• Lenses that have "SDM" in their name are equipped with a supersonic motor. When mounted on a camera that supports supersonic motors, the autofocus is quiet and smooth.
• The DA ^* 55mm f/1.4 SDM uses a circular aperture. Using it when stopping down from full aperture to about f/2.8 keeps light sources and other fuzzy points perfectly round.

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About dustproof, water resistance, and simplified weather resistance

• Dust-proof and water-resistant lenses

DA ^ 55mm f/1.4 SDM, DA ^ 300mm f/4ED [IF] SDM, DA ^ 200mm f/2.8ED [IF] SDM, DA ^ 16-50mm f/2.8ED AL [IF] SDM, DA ^ 50-135mm f/2.8ED [IF] SDM, DA ^ 60-250mm f/4ED [IF]SDM

These DA ^* lenses are dust-proof and water-resistant because each part is individually sealed. This makes it difficult for dust and water to enter the lens.

- Lenses with simplified weather-resistant construction

DA 18-55mm f/3.5-5.6 AL WR, DA 50-200mm f/4-5.6ED WR

These lenses are made with a simplified weather-resistant construction by using DA ^ lens sealing technology which makes it difficult for water to enter the lens.

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smc PENTAX-DA LENS

Note:

• The DA lens does not have an aperture ring. Aperture settings are controlled automatically as if set to the auto “A” position, so accessories without an auto “A” setting cannot be used with this lens.
• The DA lens is not compatible with film SLR cameras.

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About the DA lens mount

The DA lens is an interchangeable lens specifically designed for PENTAX digital SLR cameras. There are three mounts for the DA lens, the K_AF , K_AF2 and K_AF3 .

KAF-mount KAF2-mount KAF3-mount

Refer to the next page for more information on lenses with a supersonic motor.

CAUTION

Be careful not to damage or dirty the lens mount surfaces as this can result in failure or malfunction.

About lenses with a supersonic motor

The lenses in the table below are equipped with an internal supersonic motor. When mounted on a camera body that supports supersonic motors, the autofocus (AF) works quietly and smoothly.

- Supersonic motor compatible camera body

K-series (excluding K and D K10D

If the firmware is version 1.30 or later, it supports supersonic motor. (Refer to page 11)

Lens Precautions
DA★ 55mm f/1.4 SDMDA17-70mm f/4 AL [IF] SDM	The lens uses a supersonic motor. When the lens is mounted on a camera body that does not support supersonic motors (including the K10D with firmware older than version 1.30), the autofocus cannot be operated by either the AF motor in the camera body or the supersonic motor.If using the lens with the following cameras, and the power is turned on, MF appears in the monitor, but it does not interfere with AF operations.K10D, K100D Super, K20D K200D
DA★ 60-250mm f/4ED [IF] SDMDA★ 16-50mm f/2.8ED AL [IF] SDMDA★ 50-135mm f/2.8ED [IF] SDMDA★ 200mm f/2.8ED [IF] SDMDA★ 300mm f/4ED [IF] SDM	When the lens is mounted on a camera body that does not support supersonic motors (including the K10D with firmware older than version 1.30), the autofocus is operated by the AF motor in the camera body.

* In both cases focusing can be done manually.

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Precautions for using lenses equipped with a supersonic motor on the K10D

When using lenses equipped with a supersonic motor on the Kuse camera firmware version 1.30 or later.

• How to Check and Update the Firmware

Turn on the K while holding down the MENU button to display the firmware version in the center of the display.

Download and install the updated firmware for the Using the link below.

- Firmware Download Page:

http://www.pentax.jp/english/support/download_digital.html

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MOUNTING AND REMOVING THE LENS

1

2

Line drawing of a DSLR camera with lens and control panel (no text or symbols)

1. To mount the lens on the camera body

Attach the lens while aligning the red dots on the lens and body, then turn the lens clockwise until it clicks in place.

Memo:

• Do not hold down the lens unlock button while mounting the lens, otherwise the lens will not be properly mounted.
• After mounting the lens, gently turn the lens counterclockwise to make sure it is locked in place.

2. To remove the lens

Hold down the lens unlock button on the camera body and turn the lens counterclockwise.

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LENS CAP

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Take off the lens cap by pressing the two tabs inward.

Memo:

• When not using the lens, be sure to attach the lens cap.
• Attach the dedicated lens cap over the lens hood on the DA 21mm f/3.2 AL Limited, DA 35mm f/2.8 Macro Limited, DA FISH-EYE 10-17mm f/3.5-4.5ED [IF], and DA 70mm f/2.4 Limited. Also, with the DA 21mm f/3.2 AL Limited, DA 40mm f/2.8 Limited, and DA 70mm f/2.4 Limited, it is possible to mount the F49mm lens cap (option) by removing the lens hood.

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Line drawing of a Pentax DSLR camera with a circular inset showing the lens and scroll (no text or symbols)

Attaching the dedicated lens cap to DA 15mm f/4ED AL Limited Screw the lens cap to the front of the lens.

Technical illustration of a Pentax camera showing the lens assembly with three blades and rotation arrows (no text or symbols)

Attaching the dedicated lens cap to DA 40mm f/2.8 Limited First screw the dedicated hood onto the front of the lens, then screw the lens cap onto the lens hood.

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FOCUSING

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Changing the Focus Mode

Use the camera's focus mode switch to change between autofocus mode and manual focus mode. For details, refer to your camera operating manual.

For the DA ^* lens

The focus mode switch on the DA ^* lens is used to change between the autofocus and manual focus modes (the focus mode switch on the camera is always set to autofocus).

To use the autofocus, set the switch to the AF position.

To use the manual focus, set the switch to the MF position.

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Illustration of a person holding a DSLR camera, no text or symbols present

Using Autofocus

Set the focus mode to autofocus. Press the shutter release button halfway to autofocus. See page 15 for information about changing the focus mode.

Memo:

- Depending on your camera model, you can focus by operating buttons on the camera body. For details on how to set and use available functions of the buttons, refer to your camera operating manual.

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CAUTION

During autofocusing, the focusing ring of the following lenses will rotate.

- To prevent malfunction, do not touch the focusing ring during autofocusing. Particularly be careful when the Focus Mode is set to AF.C (Continuous mode). The camera continues adjusting the focus while the AF button is pressed or the shutter release button is pressed halfway.

• DA FISH-EYE 10-17mm f/3.5-4.5ED [IF] - DA 12-24mm f/4ED AL [IF]
• DA 16-45mm f/4ED AL - DA 17-70mm f/4 AL [IF] SDM
• DA 18-55mm f/3.5-5.6 AL WR - DA L 18-55mm f/3.5-5.6 AL
• DA 50-200mm f/4-5.6ED WR - DA L 50-200mm f/4-5.6ED
• DA 55-300mm f/4-5.8ED - DA 15mm f/4ED AL Limited
• DA 21mm f/3.2 AL Limited - DA 35mm f/2.8 Macro Limited
• DA 40mm f/2.8 Limited - DA 70mm f/2.4 Limited

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Illustration of a person using a DSLR camera to adjust the lens (no text or symbols visible)

Using Manual Focus

Set the focus mode to MF, and turn the focusing ring to focus manually. See page 15 for information about changing the focus mode.

Using the Quick-Shift Focus System

If the focus mode is set to autofocus, you can focus manually after autofocus is achieved. Manually turn the focusing ring to finely adjust the focus. You can do this without changing the focus mode to MF.

The Quick Shift Focus System is not available with the following lenses.

- DA L 18-55mm f/3.5-5.6 AL - DA L 50-200mm f/4-5.6ED

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How to use the Quick-Shift Focus System

1. Using Autofocus

Set the focus mode switch to autofocus, then press the shutter release button halfway to autofocus.

* Depending on your camera model, you can focus by operating buttons on the camera body. For details on how to set and use available functions of the buttons, refer to your camera operating manual.

2.Hold down the shutter release button halfway, then turn the focusing ring to finely adjust focus.

3. Finally, press the shutter release button fully to take a picture.

The focusing ring on some lenses may rotate during autofocus.

- Do not touch the focusing ring while autofocus is operating as it may cause a malfunction. For more information see the "CAUTION" on page 17.

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CAUTION

• When using the Quick-Shift Focus System, keep pressing the shutter release button after you achieve focus and before taking a picture. If you let go of the shutter release button before taking a picture, autofocus will operate again when you press the shutter release button again.
  However, by configuring the camera's custom settings, you can take pictures without autofocusing after letting go of the shutter release button. See the camera operating manual for details about the setting procedure.

• When focusing with manual focus or the Quick-Shift Focus System, the mechanism allows the focusing ring to rotate freely after it is set to the (infinity) or the minimum focus distance ends. However do not attempt to rotate it any farther than these ends as this will result in decreased performance.

• DA 14mm f/2.8ED [IF] - DA★ 55mm f/1.4 SDM

• DA★ 200mm f/2.8ED [IF] SDM - DA★ 300mm f/4ED [IF] SDM
• DA★ 16-50mm f/2.8ED AL [IF] SDM - DA★ 50-135mm f/2.8ED [IF] SDM
• DA★ 60-250mm f/4ED [IF] SDM

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DA ^* 200mm f/2.8ED [IF] SDM, DA ^* 300mm f/4ED [IF] SDM focusing

- The mechanism does not allow the angle of rotation of the focusing ring to have the same angle of the distance scale while focusing. Always check the focus using the view finder before taking a picture. This is especially true with manual focus and the Quick-Shift Focus System.

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Precautions on close-distance scale

(For DA 16-45mm f/4ED AL, DA 18-55mm f/3.5-5.6 AL WR, DA L 18-55mm f/3.5-5.6 AL)

In the close-distance scale range (minimum focus distance range), when shooting at the maximum aperture, image quality in the corners of the picture may deteriorate because of the optical characteristics of the lens.

When taking a picture in this range, we recommend that you use a smaller aperture, stopping down from full aperture.

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ZOOM LENS

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Close-up of a camera lens with measurement markings (no text or symbols visible)

The zoom lens has a focusing ring on the front side and a zoom ring on the rear side. Turn the zoom ring to set the desired angle of view (lens focal length).

Memo:

• The focusing point may shift slightly by changing the focal length. First adjust the zoom and then adjust the focus.
• The focusing index on the zoom lens is set to match the focus point when the focal length is at telephoto. The focusing index may not match the focus point for other focal lengths.

About the zoom ring

Turn the zoom ring clockwise for telephoto and counterclockwise for wide-angle.

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MACRO LENS

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With a DA 35mm f/2.8 Macro Limited lens, you can adjust focus from infinity to life-size [1x].

Magnification Scale

The magnification is indicated by denominators on the distance scale. "5" indicates "1/5x". When determining the magnification first, set the magnification in the manual focus mode and adjust focus by moving the camera closer or further from the subject.

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ATTACHING THE LENS HOOD

In order to avoid deterioration in image quality from internal reflection of light, use of a lens hood is recommended.

Diagram of a mechanical component with arrows indicating motion or force direction (no text or symbols)

a. Screw-on Type (DA 70mm f/2.4 Limited dedicated lens hood)

Screw the hood on to the front of the lens to attach it.

The hood is telescopic. Extend it fully to use it.

Memo:

The lens hood cannot be mounted on some circular polarizing filters that are not produced by PENTAX.

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Technical illustration of a mechanical component with layered structure and directional arrows (no text or symbols)

b.Screw-on Type (DA 40mm f/2.8 Limited dedicated lens hood)

Screw the hood on to the front of the lens to attach it.

C.Bayonet Type

When attaching the lens hood, align the index on the lens hood with the attaching index on the lens, and push both parts straight toward each other. Attach the lens hood on the lens by turning the hood in the clockwise direction, as viewed from the front of the lens, to lock it until it clicks into position.

Memo:

• When attaching the lens hood, hold the focusing ring and zoom ring securely to prevent them from turning.
• When the lens hood is not in use, it can also be turned around and attached in the reversed position.

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d.Bayonet Type (DA 21mm f/3.2 AL Limited dedicated lens hood)

When attaching the lens hood, align the index on the lens hood with the attaching index on the lens, and push both parts straight toward each other. Attach the lens hood on the lens by turning the hood in a clockwise direction, as seen from the front of the lens, until it stops.

Memo:

• Vignetting occurs if the camera is used while the hood is not completely attached.
• The dedicated lens hood cannot be attached if a filter is attached to the front of the lens. To use a filter and the dedicated lens hood together, attach a 43mm diameter filter to the back of the hood. (Refer to page 33)

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About the PL filter window

The bayonet-type hood included with the lenses below has a PL filter window which facilitates the manipulation of the circular polarizing filter.

• DA★ 55mm f/1.4 SDM - DA 16-45mm f/4ED AL
• DA★ 16-50mm f/2.8ED AL [IF] SDM - DA 17-70mm f/4AL [IF] SDM
• DA 18-55mm f/3.5-5.6 AL WR - DA★ 50-135mm f/2.8ED [IF] SDM
• DA★ 60-250mm f/4ED [IF] SDM - DA 50-200mm f/4-5.6ED WR
• DA 55-300mm f/4-5.8ED - DA★ 200mm f/2.8ED [IF] SDM
• DA★ 300mm f/4ED [IF] SDM

CAUTION

The PL filter window cap of the DA ^ 55mm f/1.4 SDM cannot be attached or removed with the hood attached to the lens. Remove the hood from the lens to attach first, and then remove the window cap.

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How to use the lens hood with polarizing filter window

1. Remove the PL filter window cap by sliding it in the direction as shown in the illustration 1.
2. Turn the outer rim of the circular polarizing filter from the PL filter window as shown in the illustration 2.

1. Attach the PL filter window cap.

Memo:

- When shooting, be sure the PL filter window cap is in place to achieve maximum effect of the lens hood.

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Built-in lens hood

The following lenses have a lens hood built into the lens body. The hood cannot be removed from the lens.

• DA FISH-EYE 10-17mm f/3.5-4.5ED [IF]
• DA 35mm f/2.8 Macro Limited (*), DA 15mm f/4ED AL Limited (*)

Lenses marked with an * have a built-in sliding hood which should be extended.

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FILTERS

Make sure the filter size matches the lens, then screw the filter onto the front of the lens.

Memo:

• The compatible filter size for each lens is listed on pages 46-52.
• Filters cannot be mounted on the DA FISH-EYE 10-17mm f/3.5-4.5ED [IF].

Precaution on filters

• Since a filter becomes a part of the optical system when attached to the lens, handle it with due care to protect it from dust, dirt and scratches. Normally, attaching two or more filters on a lens does more harm than good. However, attaching a circular polarizing filter and another filter is not a problem.
• When using a polarizing filter with a camera, use a circular polarizing filter for proper exposure and autofocus.

Technical illustration of two mechanical bearing rings with a rotation arrow indicating clockwise motion (no text or symbols)

Attaching the 30.5mm filter to the DA 40mm f/2.8 Limited lens

Normally, you attach the 49mm filter to the front of the lens. But you can also screw a 30.5mm filter to the back of the dedicated hood.

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Diagram of two interlocking rings with a curved arrow indicating rotation (no text or symbols)

Attaching a filter and the dedicated lens hood to the DA 21mm f/3.2 AL Limited lens

It is possible to attach a 49mm diameter filter to the front of the DA 21mm f/3.2 AL Limited lens, but not when the dedicated lens hood is attached. To use a filter with the dedicated lens hood, screw a 43mm diameter filter to the back of the filter.

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Diagram showing three stages of a mechanical bearing assembly with arrows indicating rotation (no text or symbols present)

Attaching a filter and the dedicated lens hood to the DA 70mm f/2.4 Limited lens

With the DA 70mm f/2.4 Limited lens, attach the 49mm diameter filter to the front of the lens. To use it together with the dedicated lens hood, screw it on over the filter that is attached.

Memo:

- The lens hood cannot be mounted on some circular polarizing filters that are not produced by PENTAX.

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Circular polarizing filters and vignetting

Circular polarizing filters are thicker than regular filters. Depending on the lens that is mounted and the shooting conditions, vignetting may occur in the four corners of the image. Refer to the "Compatibility table for PENTAX circular polarizing filters" on the following page for information on compatibility of PENTAX circular polarizing filters (currently not in production) with various lenses. There are two types of PENTAX circular polarizing filters. The A type (on the left in the diagram below) and the B type (on the right in the diagram below). The B type filter is thinner than the A type filter.

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A type B type

Simple line drawing of a circular object with internal hatching and dashed lines, no text or symbols present.

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Compatibility table for PENTAX circular polarizing filters

* PENTAX circular polarizing filters are currently not produced.

YES: Compatible *YES: Compatible in some conditions NO: Incompatible

Lens	Circular polarizing filter (A type)		Circular polarizing filter (B type)
	Compatibility	Notes	Compatibility	Notes
DA 14mm f/2.8ED [IF] NO Vignetting occurs. YES
DA 15mm f/4ED AL Limited NO Vignetting occurs. YES
DA 21mm f/3.2 AL Limited*3	YES	Use a filter with a diameter of 49mm.	YES	Use a filter with a diameter of 49mm.
DA 35mm f/2.8 Macro Limited *YES		*Can be mounted and used. However, the built-in lens hood cannot be withdrawn while the A type circular polarizing filter is attached.	YES
DA 40mm f/2.8 Limited*1	YES	Use a filter with a diameter of 49mm.	YES	Use a filter with a diameter of 49mm.
DA* 55mm f/1.4 SDM*1	YES YES
DA 70mm f/2.4 Limited*1	YES YES

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Lens	Circular polarizing filter (A type)		Circular polarizing filter (B type)
	Compatibility	Notes	Compatibility	Notes
DA* 200mm f/2.8ED [IF] SDM	*YES	*Can be mounted and used. However, the dedicated bayonet hood cannot be mounted on top of the A type circular polarizing filter.	YES
DA* 300mm f/4ED [IF] SDM
DA 12-24mm f/4ED AL [IF]* ^2	*YES	*Vignetting occurs at focal lengths below 15mm.	*YES	*Vignetting occurs at focal lengths below 15mm.
DA* 16-50mm f/2.8ED AL [IF] SDM	NO Vignetting occurs. YES
DA* 50-135mm f/2.8ED [IF] SDM	YES YES
DA 16-45mm f/4ED AL *YES		*Can be mounted and used. However, the dedicated bayonet hood cannot be mounted on top of the A type circular polarizing filter.	YES
DA 17-70mm f/4 AL [IF] SDM NO *YES				Vignetting occurs when the focal length is 17mm.

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38

Lens	Circular polarizing filter (A type)		Circular polarizing filter (B type)
	Compatibility	Notes	Compatibility	Notes
DA L 18-55mm f/3.5-5.6 AL	*YES	*Can be mounted and used. However, the dedicated bayonet hood cannot be mounted on top of the A type circular polarizing filter.	YES
DA 18-55mm f/3.5-5.6 AL WR
DA L 50-200mm f/4-5.6ED
DA 50-200mm f/4-5.6ED WR
DA 55-300mm f/4-5.8ED
DA★ 60-250mm f/4ED [IF] SDM	YES YES

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39

*1 The lens hood cannot be mounted on some circular polarizing filters that are not produced by PENTAX.
*2 Vignetting occurs at focal lengths below 15mm with other PENTAX filters (such as the Skylight) besides circular polarizing filters.
*3 The dedicated hood cannot be mounted if a filter including a circular polarizing filter is mounted on the front of the lens.

Memo:

- Filters, including circular polarizing filters, cannot be mounted on the DA FISH-EYE 10-17mm f/3.5-4.5ED [IF] lens.

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40 PRECAUTIONS WHEN USING THE LENS WITH A FLASH

Built-in Flash

The built-in flash can not be used when the distance is less than 0.7m. When the flash is used within 0.7m, it causes incorrect exposure control and vignetting in the picture corners.

- Refer to the "Compatibility of DA Lenses with the Built-in Flash" chart on page 42 for information on the compatibility of the built-in flash with the lens being used.

External Flash

The external flash can be used while the lens hood is attached. However, the following conditions apply to some types of lenses.

●DA 14mm f/2.8ED [IF]
●DA 15mm f/4ED AL Limited

The AF540FGZ and AF360FGZ external flash units can only be used when the wide-angle panel is used (it is also possible to use the lens hood). Other external flash units are not recommended because their coverage angle is not compatible with the angle of view of the lens.

●DA 21mm f/3.2 AL Limited

External flash units can be used while the lens hood is mounted without problems if it is possible to set their zoom [coverage angle] up to 28mm.

●DA FISH-EYE 10-17mm f/3.5-4.5ED [IF]

External flash units cannot be used because their coverage angle is not compatible with the angle of view of the lens.

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●DA 12-24mm f/4ED AL [IF]

PENTAX external flash units which cover a 24mm lens on a 35mm SLR, or 16mm lens on a digital SLR, can be used when the lens is set from 16mm to 24mm.

AF540FGZ and AF360FGZ can be used from 13mm to 24mm with the wide angle panel (in both cases, it is possible to use the lens hood). Please note that at focal lengths less than 13mm the corners of the picture will not be fully illuminated.

Other external flash units are not recommended, because their coverage angle is not wide enough to cover the angle of view of the lens.

●DA ^* 16-50mm f/2.8ED AL [IF] SDM

●DA 16-45mm f/4ED AL

PENTAX external flash units which cover a 24mm lens on a 35mm SLR, or 16mm lens on a digital SLR, can be used with the lens hood without problems.

* For more information, refer to the manual for the external flash unit.

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42

Compatibility of DA Lenses with the Built-in Flash

Lens	Compatibility
	*istD	*istDS, *istDS2*istDL, *istDL2	K-series
DA 14mm f/2.8ED [IF] NO NO NO
DA 15mm f/4ED AL Limited NO NO NO
DA 21mm f/3.2 AL Limited YES YES YES
DA 35mm f/2.8 Macro Limited YES YES YES
DA 40mm f/2.8 Limited YES YES YES
DA* 55mm f/1.4 SDM YES YES YES
DA 70mm f/2.4 Limited YES YES YES
DA* 200mm f/2.8ED [IF] SDM YES YES YES
DA* 300mm f/4ED [IF] SDM YES YES YES
DA FISH-EYE 10-17mm f/3.5-4.5ED [IF] NO NO NO
DA 12-24mm f/4ED AL [IF] NO NO NO
DA* 16-50mm f/2.8ED AL [IF] SDM YES*1 YES*2 YES*3
DA 16-45mm f/4ED AL YES*4 YES*4 YES*4
DA 17-70mm f/4 AL [IF] SDM	YES*5 YES*6 YES*7
DA L 18-55mm f/3.5-5.6 AL	YES YES YES
DA 18-55mm f/3.5-5.6 AL WR	YES YES YES
DA* 50-135mm f/2.8ED [IF] SDM	YES YES YES
DA L 50-200mm f/4-5.6ED	YES YES YES

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Lens	Compatibility
	*istD	*istDS, *istDS2*istDL, *istDL2	K-series
DA 50-200mm f/4-5.6ED WR YES YES YES
DA 55-300mm f/4-5.8ED YES YES YES
DA ^* 60-250mm f/4ED [IF] SDM YES YES YES

Except for the DA 35mm f/2.8 Macro Limited, DA 70mm f/2.4 Limited, DA 40mm f/2.8 Limited and DA 21mm f/3.2 AL Limited lenses, do not use the lens hood when using the built-in flash. This is to prevent the lens hood from obstructing the flash.

*1 Vignetting occurs when the focal length is 35mm or less, or when the focal length is 16 to 50mm and the shooting distance is below 1.5 m.
*2 Vignetting occurs when the focal length is 28mm or less, or when the focal length is 16 to 50mm and the shooting distance is below 1.5 m.
*3 Vignetting occurs when the focal length is 20mm or less, or when the focal length is 35mm and the shooting distance is below 1.5 m.
*4 Vignetting occurs when the focal length is below 28mm, or when the focal length is 28mm and the shooting distance is 1 m or less.
*5 Vignetting occurs when the focal length is below 35mm, or when the focal length is 35mm and the shooting distance is 1 m or less.
*6 Vignetting occurs when the focal length is below 35mm.
*7 Vignetting occurs when the focal length is below 24mm, or when the focal length is 24mm and the shooting distance is 1 m or less.

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44

TRIPOD MOUNT

DA ^ 60-250mm f/4ED [IF] SDM and DA ^ 300mm f/4ED [IF] SDM are equipped with the tripod mount. To position the camera vertically or horizontally, loosen the camera position shift lock screw, turn the camera 90° to the right or left as desired, and tighten the lock screw firmly.

The tripod mount is detachable.

• Attach only to a stable tripod.
• We recommend using a fast shutter speed as large lenses may contribute to camera shake.

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45

Removing the Tripod Mount

To remove the mount, use a coin to loosen the screw by turning it to the left. Be careful not to loosen the screw too much or else it may fall out.

Insert a coin into the slot on the screw and turn to the left.

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MAIN SPECIFICATIONS

* For use with any PENTAX digital SLR camera.
* AL = Uses an aspheric lens, ED = Lens made with extra-low dispersion glass, IF = Inner focus-type lens, SDM = Lens with a supersonic motor

Lens DA 14mm f	2.8ED [IF]	DA 15mm f/4ED AL Limited	DA 21mm f/3.2 AL Limited
Focal length	14mm (equivalent to approx. 21.5mm in 35mm format)	15mm (equivalent to approx. 23mm in 35mm format)	21mm (equivalent to approx. 32mm in 35mm format)
Elements in groups	12-11 8-6 8-5
Angle of view 90°	86° 68°
Aperture f/2.8 f/4	f/3.2
Minimum aperture	f/22 f/22 f/22
Mount type	K_AF -mount	K_AF -mount	K_AF -mount
Minimum focus distance	0.17m (0.56ft) 0.18m (0.59ft)	0.2m (0.66ft)
Maximum magnification	Approx. 0.19× Approx. 0.15× Approx. 0.17×
Filter size	77mm	49mm	49mm or 43mm
Lens hood	PH-RBH 77mm	Built-in	MH-RBA 43mm
Max. diameter × length	83.5mm × 69mm (3.3in × 2.7in)	63mm × 39.5mm (2.5in × 1.6in)	63mm × 25mm (2.5in × 1.0in)
Weight	Approx. 420g/14.8oz(with hood approx. 455g/16.0oz)	Approx. 190g/6.7oz	Approx. 140g/4.9oz (with hood approx. 155g/5.5oz)
Soft case	S100-120	Soft case DA70	Dedicated case

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Lens	DA 35mm f/2.8 Macro Limited	DA 40mm f/2.8 Limited DA	* 55mm f/1.4 SDM
Focal length	35mm (equivalent to approx. 53.5mm in 35mm format)	40mm (equivalent to approx. 61mm in 35mm format)	55mm (equivalent to approx. 84.5mm in 35mm format)
Elements in groups	9-8 5-4 9-8
Angle of view 44°	39° 29°
Aperture f/2.8 f/2.8 f/1.4
Minimum aperture	f/22 f/22 f/22
Mount type	K_AF -mount	K_AF -mount	K_AF3 -mount
Minimum focus distance	0.139m (0.46ft) 0.4m (1.31ft)	0.45m (1.48ft)
Maximum magnification	Approx. 1.00× Approx. 0.13× Approx. 0.17×
Filter size 49mm	49mm or 30.5mm 58mm
Lens hood	Built-in	MH-RC 49mm	PH-RBH 58mm
Max. diameter × length	63mm × 46.5mm (2.5in × 1.8in)	63mm × 15mm (2.5in × 0.6in)	70.5mm × 66mm (2.8in × 2.6in)
Weight	Approx. 215g/7.6oz	Approx. 90g/3.2oz (with hood approx. 100g/3.5oz)	Approx. 375g/13.2oz(with hood approx. 420g/14.8oz)
Soft case	Soft case DA70	Dedicated case	S90-100

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Lens DA 70mm f/2.4 Limited DA		* 200mm f/2.8ED [IF] SDM	DA * 300mm f/4ED [IF] SDM
Focal length	70mm (equivalent to approx. 107mm in 35mm format)	200mm (equivalent to approx. 307mm in 35mm format)	300mm (equivalent to approx. 460mm in 35mm format)
Elements in groups	6-5 9-8 8-6
Angle of view 23°	8.1° 5.4°
Aperture f/2.4 f/2.8 f/4
Minimum aperture	f/22 f/22 f/32
Mount type	KAF-mount	KAF2-mount	KAF2-mount
Minimum focus distance	0.7m (2.3ft) 1.2m (4ft)	1.4m (4.67ft)
Maximum magnification	Approx. 0.12×	Approx. 0.20×	Approx. 0.24×
Filter size	49mm	77mm	77mm
Lens hood	MH-RD 49mm PH-RBK 77mm PH-RBK 77mm
Max. diameter × length	63mm × 26mm (2.5in × 1.0in)	83mm × 134mm (3.3in × 5.3in)	83mm × 184mm (3.3in × 7.2in)
Weight	Approx. 130g/4.6oz (with hood approx. 150g/5.3oz)	Approx. 825g/29.1oz (with hood approx. 915g/32.3oz)	Approx. 1070g/37.7oz (with hood approx. 1160g/40.9oz) (with hood + tripod attachment approx. 1240g/43.7oz)
Soft case	Soft case DA70	S120-160	S120-210

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Lens	DA FISH-EYE 10-17mm f/3.5-4.5ED [IF]	DA 12-24mm f/4ED AL [IF]	DA 16-45mm f/4ED AL
Focal length	10-17mm (35mm conversion not possible)	12-24mm (equivalent to approx. 18.5-37mm in 35mm format)	16-45mm (equivalent to approx. 24.5-69mm in 35mm format)
Elements in groups	10-8 13-11 13-10
Angle of view 180°-100° 99°-61° 83°-35°
Aperture f/3.5-f/4.5 f/4 f/4
Minimum aperture	f/22-f/32 f/22 f/22
Mount type	K_AF -mount	K_AF -mount	K_AF -mount
Minimum focus distance	0.14m (0.46ft)(Approximately 2.5cm from front of lens)	0.3m (0.98ft)	0.28m (0.92ft)
Maximum magnification	Approx. 0.39×	Approx. 0.12×	Approx. 0.26×
Filter size	Cannot be mounted	77mm	67mm
Lens hood	Built-in	PH-RBI 77mm	PH-RBL 67mm
Max. diameter × length	68mm × 71.5mm (2.7in × 2.8in)	84mm × 87.5mm (3.3in × 3.4in)	72mm × 92mm (2.8in × 3.6in)
Weight	Approx. 320g/11.3oz	Approx. 430g/15.2oz(with hood approx. 457g/16.1oz)	Approx. 365g/12.9oz(with hood approx. 390g/13.8oz)
Soft case	S80-80	S100-120	S90-140

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Lens	DA* 16-50mm f/2.8ED AL [IF] SDM	DA 17-70mm f/4 AL [IF] SDM	DA L 18-55mm f/3.5-5.6 AL
Focal length	16-50mm (equivalent to approx. 24.5-76.5mm in 35mm format)	17-70mm (equivalent to approx. 26-107mm in 35mm format)	18-55mm (equivalent to approx. 27.5-84.5mm in 35mm format)
Elements in groups	15-12 17-12 11-8
Angle of view 83°	-31.5° 79°-23° 76°-29°
Aperture f/2.8 f/4	f/3.5-5.6
Minimum aperture	f/22 f/22 f/22-38
Mount type	KAF2-mount	KAF3-mount	KAF-mount
Minimum focus distance	0.3m (0.98ft) 0.28m (0.92ft)	0.25m (0.82ft)
Maximum magnification	Approx. 0.21× Approx. 0.3	1× Approx. 0.34×
Filter size 77mm	67mm	52mm
Lens hood	PH-RBJ 77mm	PH-RBM 67mm	PH-RBA 52mm (sold separately)
Max. diameter × length	84mm × 98.5mm (3.3in × 3.9in)	75mm × 93.5mm (3.0in × 3.7in)	68mm × 67.5mm (2.7in × 2.7in)
Weight	Approx. 565g/19.9oz (with hood approx. 600g/21.2oz)	Approx. 485g/17.1oz (with hood approx. 515g/18.2oz)	Approx. 200g/7.1oz (with hood approx. 225g/7.9oz)
Soft case	S100-140	S90-140	S80-120

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Lens	DA 18-55mm f/3.5-5.6 AL WR	DA* 50-135mm f/2.8ED [IF] SDM	DA L 50-200mm f/4-5.6ED
Focal length	18-55mm (equivalent to approx. 27.5-84.5mm in 35mm format)	50-135mm (equivalent to approx. 76.5-207mm in 35mm format)	50-200mm (equivalent to approx. 76.5-307mm in 35mm format)
Elements in groups	11-8 18-14 11-10
Angle of view 76°	-29° 31.5°-11.9° 31.5°-8.1°
Aperture f/3.5-f/5	.6 f/2.8 f/4-5.6
Minimum aperture	f/22-f/38 f/22 f/22-32
Mount type	KAF-mount	KAF2-mount	KAF-mount
Minimum focus distance	0.25m (0.82ft) 1.0m (3.3ft)	1.1m (3.6ft)
Maximum magnification	Approx. 0.34×	Approx. 0.17×	Approx. 0.24×
Filter size	52mm	67mm	52mm
Lens hood	PH-RBC 52mm	PH-RBK 67mm	PH-RBB 52mm (sold separately)
Max. diameter × length	68.5mm × 67.5mm (2.7in × 2.7in)	76.5mm × 136mm (3.0in × 5.4in)	66.5mm × 78.5mm (2.6in × 3.1in)
Weight	Approx. 235g/8.3oz (with hood approx. 260g/9.2oz)	Approx. 685g/24.2oz (with hood approx. 765g/27.0oz)	Approx. 235g/8.3oz (with hood approx. 265g/9.3oz)
Soft case	S80-120	S90-160	S80-120

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Lens	DA 50-200mm f/4-5.6ED WR	DA 55-300mm f/4-5.8ED	DA* 60-250mm f/4ED [IF] SDM
Focal length	50-200mm (equivalent to approx. 76.5-307mm in 35mm format)	55-300mm (equivalent to approx. 84.5-460mm in 35mm format)	60-250mm (equivalent to approx. 92-383mm in 35mm format)
Elements in groups	11-10 12-8 15-13
Angle of view 31	5°-8.1° 29°-5.4° 26.5°-6.5°
Aperture f/4-f/5.6	f/4-f/5.8 f/4
Minimum aperture	f/22-f/32 f/22-f/32 f/32
Mount type	KAF-mount	KAF-mount	KAF2-mount
Minimum focus distance	1.1m (3.6ft) 1.4m (4.67ft)	1.1m (3.6ft)
Maximum magnification	Approx. 0.24× Approx. 0.28× Approx. 0.15×
Filter size 49mm	58mm 67mm
Lens hood	PH-RBD 49mm	PH-RBG 58mm	PH-RBK 67mm
Max. diameter × length	69mm × 79.5mm (2.7in × 3.1in)	71mm × 111.5mm (2.8in × 4.4in)	82mm × 167.5mm (3.2in × 6.6in)
Weight	Approx. 285g/10.1oz(with hood approx. 320g/11.3oz)	Approx. 440g/15.5oz(with hood approx. 470g/16.6oz)	Approx. 1,050g/37.0oz(with hood approx. 1,130g/39.9oz) (with hood + tripod attachment approx. 1,240g/43.7oz)
Soft case	S80-120	S80-160	S100-200

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53

For customers in USA

STATEMENT OF FCC COMPLIANCE

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not approved by the party responsible for compliance could void the user's authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

*Consult the dealer or an experienced radio/TV technician for help.

For customers in Canada

This Class B digital apparatus complies with Canadian ICES-003.

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HOYA CORPORATION

PENTAX Imaging Systems Division

2-36-9, Maeno-cho, Itabashi-ku, Tokyo 174-8639, JAPAN) (http://www.pentax.jp)

PENTAX Imaging Systems GmbH

Julius-Vosseler-Strasse, 104, 22527 Hamburg, GERMANY (http://www.pentax.de)

(European Headquarters) (Germany - http://www.pentax.de) Hotline: [phone] / 0180 5 PENTAX

Austria Hotline: [phone] (http://www.pentax.at)

PENTAX Imaging Systems Limited

PENTAX House, Heron Drive, Langley, Slough, Berks SL3 8PN, U.K. (http://www.pentax.co.uk)

PENTAX Europe Imaging Systems S.A.S.

112 Quai de Bezons - BP 204, 95106 Argenteuil Cedex, FRANCE

(HQ - http://www.pentaxeurope.com) (France - http://www.pentax.fr)

PENTAX Imaging Company

A Division of PENTAX of America, Inc.

(Headquarters)

600 12th Street, Suite 300 Golden, Colorado 80401, U.S.A.

(PENTAX Service Department)

250 North 54th Street Chandler, AZ 85226, U.S.A.

(http://www.pentaximaging.com)

PENTAX Canada Inc. 1770 Argentina Road Mississauga, Ontario L5N 3S7, CANADA (http://www.pentax.ca)

PENTAX Trading (SHANGHAI) Limited

23D, Jun Yao International Plaza, 789 Zhaojiabang Road, Xu Hui District, Shanghai, 200032 CHINA

(http://www.pentax.com.cn)

The CE Mark is a Directive conformity mark of the European Union.

☆Specifications and external dimensions are subject to change without notice.

Copyright © HOYA CORPORATION 2010

AP070101/ENG FOM 01.12.2010 Printed in Europe