SL20-B - Lens COLBOR - Free user manual and instructions

Brand	COLBOR
Model	SL20-B
Product Type	Lens
Lens Type	Standard Prime
Focal Length	20 mm
Maximum Aperture	f/2.8
Minimum Aperture	f/22
Focus Type	Manual Focus
Optical Construction	10 elements in 8 groups
Diaphragm Blades	7 (rounded)
Minimum Focus Distance	0.25 m
Filter Thread Size	67 mm
Weight	220 g
Dimensions (D x L)	65 mm x 70 mm
Image Stabilization	No
Autofocus	No
Weather Sealing	Not specified
Compatible Sensor	Full frame & APS-C
Lens Hood Included	Yes (petal type)
Coating	Multi-coated

Frequently Asked Questions - SL20-B COLBOR

What is the focal length and maximum aperture of the COLBOR SL20-B?

The COLBOR SL20-B is a 20 mm prime lens with a maximum aperture of f/2.8, ideal for low-light photography and achieving a shallow depth of field.

Does the SL20-B lens have autofocus?

No, the SL20-B is a manual focus lens, offering precise control over focus for both photography and video.

What lens mounts are available for this lens?

The COLBOR SL20-B is available in multiple mounts including Canon EF, Nikon F, Sony E, and Micro Four Thirds. Please check the specific variant when purchasing.

What is the minimum focus distance?

The minimum focus distance is approximately 0.25 meters, allowing you to get close to subjects for detailed close-ups.

How should I clean the lens?

Use a lens blower to remove dust, then a microfiber cloth with a small amount of lens cleaning solution. Avoid touching the glass with fingers. Always clean in a circular motion from the center outward.

Is the lens weather sealed?

The COLBOR SL20-B does not have official weather sealing, so it is recommended to protect it from moisture and dust using a lens cover when not in use.

What filter size does the SL20-B use?

The lens uses a 67 mm filter thread, compatible with standard filters such as UV, polarizers, and ND filters.

Does the lens have image stabilization?

No, the SL20-B does not include in-lens image stabilization. However, when used with a camera body that has in-body stabilization, stabilization can be achieved.

What is the weight and size of the lens?

The lens weighs approximately 220 grams and measures 65 mm in diameter and 70 mm in length, making it compact and lightweight for portability.

How do I attach the lens to my camera?

Align the mounting index (usually a red dot) on the lens with the corresponding mark on the camera body, then twist the lens clockwise until it clicks. To detach, press the lens release button and twist counterclockwise.

USER MANUAL SL20-B COLBOR

Thank you for choosing COLBOR product. Please read this manual carefully before use and follow all instructions mentioned herein.

Caring For Your COLBOR Product

• Keep corrosive chemicals, liquids, and heat sources away from the product to prevent mechanical damage.
  • The product is not waterproof.
• Do not leave the product unattended while in use. Keep out of reach of children.
• Do not handle it with wet hands.
• Please do not block the ventilation and do not look at the light directly when it is on.
• Do not attempt to disassemble or modify the product. Doing so voids the warranty.
• Please have the product checked or repaired by authorized technicians if any malfunctions happen.
• Disconnect from the power supply when it is not in use.
• Malfunction may be caused by dropping, the impact of external force.
• Failure to follow all the instructions may result in mechanical damage.
  • Warranty does not apply to human errors.

Operation Instructions

Installation and Removal of SL20-B Spotlight

1. Check the glass and shutter blade for good condition.
2. Loosen the screws of the 7-shaped handle and adjust the bracket to be 90^ with the spotlight. Then tighten the handle screws.

COUBOR SL-B 90°

1. Mount the spotlight on the stable light stand, secure it with weights, and tighten screws.

Technical diagram showing a surveying instrument mounted on a tripod with an inset close-up of its internal components labeled 'GOIEOR' and 'SL-4'.

1. Pull all the shutter blades to outer edge.

Mechanical assembly diagram showing two stages of a circular component with directional arrows indicating motion (no text or symbols)

1. Align the spotlight with the groove around the lamp head and clip it in, turn the spotlight in the direction of the arrow, and the installation will be completed after the top rod rebounds.

* Removal of spotlight: Please follow the instructions below.

COIBOR CLEAR COIBOR CLEAR

COUBOR COUBOR CL40

Attaching the Gobos

1. Mount the gobo on the gobo holder in place.
2. Insert the holder into the slot of the spotlight attachment, then slide the holder lock bar to lock the holder.

Technical line drawing of a COX80R air intake device with no visible text or symbols

Attaching the Colored Gel Filter

1. Place the colored gel filter into the colored gel filter holder, then mount the holder on the frontside of the spotlight.

Technical line drawing of a mechanical device with blue internal component and mounting flanges (no text or symbols)

Focus Adjustment

1. Loosen the locking focus knob on the bottom and push the lens forward to adjust the focus. Tighten the knob to lock.

Technical line drawing of a mechanical device with no visible text or symbols

Specifications

Product	SL20-B Bowen Mount Spotlight
Size	Fold: 363*175*177mm Unfold: 353*234*269mm
Weigh	2.11kg
Compatibility	CL60 Series (Expect for CL60R); CL100X Series

Packing List

Technical line drawing of a mechanical assembly with no visible text or symbols

SL Spotlight x1

Technical line drawing of a mechanical component or bracket (no text or symbols)

20^ Lens x1

Simple line drawing of a cylindrical object with a circular hole and a small protrusion at the bottom (no text or symbols)

GOBO Holder x1

Colored Gel Filter Holder x1

GOBO ×30

COLOR WARRANTY CARD

Warranty Card x1

Illumination

CL60M+SL20 (LUX)

CCT	1m	3m	5m
5600K	52100	3990	1560

CL60+SL20 (LUX)

CCT	1m	3m	5m
2700K	32,000	2,560	989
3200K	33,900	2,720	1,050
4300K	37,100	2,960	1,140
5600K	40,000	3,180	1,220
6500K	41,800	3,320	1,270

CL100X+SL20 (LUX)

CCT	1m	3m	5m
2700K	44,400	3,530	1,350
3200K	47,300	3,760	1,430
4300K	51,400	4,090	1,560
5600K	54,800	4,350	1,650
6500K	56,200	4,460	1,690

★ The data is given from testing in a laboratory.

WARRANTY

Warranty Period

Thank you for purchasing COLBOR products.

1. Customers are entitled to free replacement or repair service in case of quality defect(s) found in the product under normal use within 30 days upon receipt of the product.
2. Original COLBOR products are entitled to 12-month limited warranty service. The warranty period begins on the date of purchase of brand new, unused products by the first end-user.

Within the warranty period, if product defect or failure is attributable to material defection or technological problem, the defective product or defective part will be repaired or replaced without charge (service and materials fee).

Warranty Exclusions and Limitations

1. Faults resulted from inappropriate use of a product without following its operation specification
2. Artificial damage, e.g. crash, squeeze, scratch, soaking, exposing to rain or damp
3. Modifications to a product by its user or a third party without prior written consent of COLBOR, e.g. replacement of element or circuit, label alteration
4. The code on product is inconsistent with that of warranty certificate, or the code on the product or warranty certificate is altered or torn off
5. All consumable accessory attached to a product, like cable, cover
6. Faults as a result of force majeure, such as fire, flood, lightning, etc.

Warranty Claim Procedure

1. If failure or any problem occurs to your product after purchase, please contact a local agent for assistance, or you can always contact COLBOR's customer service through email.

2. Please retain your sales receipt and warranty certificate as proof of purchase. If any of these documents is missing, only sales return or chargeable service will be provided.

3. If the COLBOR product is out of the warranty coverage, the service and the parts cost will be charged.

Guangzhou Zhiying Technology Co., Ltd

Room 2401, 24 / F, South Tower, Lisheng Plaza, No. 68 Huadi Avenue, Liwan District, Guangzhou, China, 510000
[e-mail]
www.colborlight.com