CJ15ex4.3B - Lens CANON - Free user manual and instructions
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| Product Type | Broadcast Zoom Lens |
| Brand | Canon |
| Model | CJ15ex4.3B |
| Lens Mount | 2/3-inch B4 |
| Focal Length Range | 4.3 – 64.5 mm (15x zoom) |
| Maximum Aperture | f/1.7 |
| Minimum Aperture | f/16 (typical) |
| Zoom Ratio | 15x |
| Focus Control | Servo or Manual (via handgrip) |
| Iris Control | Servo or Manual |
| Weight | Approx. 1.2 kg (without lens hood) |
| Dimensions (Diameter x Length) | 80 x 200 mm (approx.) |
| Power Supply | 12 V DC (from camera or external) via 4-pin connector |
| Optical Construction | 16 elements in 12 groups (including aspherical elements) |
| Built-in Extender | 2x (optional, depending on version) |
| Main Functions | Zoom, Focus, Iris, AGC (if equipped), Macro (near focusing) |
| Maintenance | Clean outer surface with soft, dry cloth. Use blower for dust. Avoid moisture. |
| Cleaning | Lens cleaning solution and lint-free cloth for front/rear elements. |
| Safety Precautions | Do not point at strong light sources. Use lens cap when not in use. |
| Spare Parts | Lens hood, front cap, rear cap, protective filters (e.g., UV, ND) |
| Repairability | Service by authorized Canon center only. Do not attempt disassembly. |
| General Information | Designed for 2/3-inch broadcast cameras, HD-compatible, lightweight. |
Frequently Asked Questions - CJ15ex4.3B CANON
What is the flange back adjustment procedure for the CJ15ex4.3B?
Flange back adjustment is performed using the lens adapter ring. Loosen the set screw, rotate the ring until the image is sharp at infinity, then tighten the screw. Refer to the manual for exact steps.
Can I use this lens with a camera that has a 1/3-inch sensor?
No, the CJ15ex4.3B is designed for 2/3-inch cameras only. Using it with smaller sensors will cause vignetting and loss of image circle.
What is the maximum aperture at the wide-angle end?
The maximum aperture at 4.3 mm is f/1.7, making it suitable for low-light ENG applications.
How do I clean the lens elements safely?
Use a lens blower to remove dust. For smudges, apply a drop of lens cleaning solution to a lint-free cloth and wipe gently in a circular motion. Never apply liquid directly to the glass.
Is the lens compatible with Canon's HDxs series cameras?
Yes, it is compatible with Canon HDxs and other 2/3-inch HD cameras, provided they have a B4 mount and support 12V servo control.
What is the minimum focusing distance?
The minimum object distance (MOD) is approximately 0.5 m. With the macro function engaged, it can focus as close as 20 mm from the front element.
How can I check if the lens has a 2x extender?
Look for a switch on the lens barrel labeled 'EXT' or '2X'. If present, the switch activates the built-in extender, doubling the focal length.
What type of tripod plate does the lens use?
The lens includes a standard 1/4-inch tripod mount thread. For heavy-duty use, a lens support bracket is recommended.
Can I replace the lens hood?
Yes, the lens hood is detachable and can be replaced if damaged. It uses a bayonet mount. Spare hoods are available from Canon parts.
Why is my zoom speed inconsistent?
Inconsistent zoom speed may indicate a dirty or damaged zoom potentiometer. Try cleaning the zoom rocker contact points. If the issue persists, service by a Canon technician is required.
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USER MANUAL CJ15ex4.3B CANON
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Product information
Brand : CANON
Model : CJ15ex4.3B
Category : Lens