Canon CJ12ex4.3 BIASE 4K

Production Information

4K B4 2/3″ Broadcast wide angle zoom lens with extender

with or without remotes zoom +focus SS-41IASD (contact for price)

The Canon CJ12ex4.3BIASE 4K is a 4K UHD lens designed primarily for broadcast and cinematography applications.

1. Optical Specifications:

• Focal Length: 4.3–52.0mm (12x zoom)
• Maximum Aperture: f/1.8 (at 4.3mm), f/2.6 (at 52mm)
• Zoom Ratio: 12x zoom
• Field of View:
  • Horizontal: 74.4° to 6.4°
  • Vertical: 47.2° to 4.3°
  • Diagonal: 84.3° to 7.3°

2. Image Quality:

• Resolution: 4K UHD (supports up to 3840×2160 resolution)
• Optical Design: Utilizes advanced optical elements, including Canon’s proprietary technologies for sharpness and image stability at both wide and telephoto ends.
• Lens Mount: 2/3-inch bayonet mount (compatible with 2/3-inch broadcast cameras).

3. Image Stabilization:

• Optical Image Stabilizer (OIS): Includes Canon’s Dynamic Image Stabilizer system, which provides smooth footage even in dynamic or handheld situations.

4. Iris and Focus:

• Iris Blades: 9 blades for a circular aperture, contributing to soft and smooth bokeh effects.
• Manual Focus: Yes, with a smooth and precise rotation.
• Servo Zoom and Focus: The lens comes with a built-in servo zoom and focus control, offering both manual and electronic control options.

5. Zoom and Servo:

• Servo Control: Canon’s “Drive Unit” allows for precise and smooth zoom control, with a focus on operational ease and smoothness in live production or cinematic use.
• Zoom Speed: Adjustable for various shooting styles, from smooth transitions to quick zooms.
• Zoom Range: 4.3mm to 52mm.

6. Physical Characteristics:

• Weight: Approximately 2.3kg (5.07 lbs)
• Length: Around 177.5mm (7 inches)
• Diameter: 95mm (3.7 inches)
• Lens Mount: 2/3-inch B4 mount
• Power Supply: Can be powered using the lens’s built-in drive system or external power sources via the camera system.

7. Compatibility and Features:

• Dual Pixel Focus Guide: Compatible with Canon’s Dual Pixel AF systems for enhanced autofocus functionality when used with compatible cameras.
• Built-In Servo Mechanism: The lens comes with a built-in servo unit, allowing for remote control of zoom, focus, and iris.

8. Other Features:

• Weather-Sealing: The lens is designed for professional fieldwork, with enhanced weatherproofing to protect against dust and moisture.
• Advanced Color Accuracy: The lens is engineered for precise color reproduction, contributing to realistic and consistent image quality, crucial for 4K production.

9. Applications:

• Ideal for broadcast, live event coverage, sports, and high-end production where 4K resolution and high-quality optics are essential.

This lens is a highly versatile and professional tool for demanding 4K UHD production scenarios.