UA107x8.4BESM New

The new FUJIFILM UA UA107x8.4BESM is the longest and widest 4K lens for Ultra HD Broadcast applications. The UA107x8.4BESM delivers 4K optical quality which is a hallmark FUJINON "ZK series" of cine lenses. The optical quality is based on large diameter aspherical elements designed by their latest optical simulation system. Also, the lens achieves 4K UHD optical performance while suppressing image distortion due to a multi-group zoom system. Designed to produce 4K UHD performance from today's new 4K 2/3" Ultra HD cameras.

The UA107x8.4BESM employs the latest High Transmittance Electron Beam Coating (HT-EBC) resulting in richer colors and greatly improved blue response and transmittance. HT-EBC, coupled with Fujifilm's exclusive Aspheric Technology, reduces ghost and flare and increases light transmission. The high resolution, high contrast, and high dynamic range of the UA107x will produce images that will impress. A proprietary anti-fogging design minimizes lens fogging and reduces downtime due to moisture—a critical concern when shooting in all types of weather conditions.

Designed along the same parameters of the UA80x and XA99x, the UA107x will have all the same digital features; F number limit, Quick Zoom, two-shot presets, a 2X extender, and other precision digital functions increasing production flexibility. The UA107x8.4BESM features a patented optical image stabilization technology OS-TECH, for rock-steady performance, which is especially critical for long-distance HD shots. With an F no. of 1.7, virtual reality connections, and 16 bit encoders, the UA107x8.4BESM is sure to be the new standard for 4K UHD and HD production worldwide.

Camera Format 2/3″
Focal Length 1 × 8.4 - 900 mm
2 × 16.8 - 1800 mm
Zoom Range 107 ×
Extender 2 ×
Maximum Relative Aperture 1 : 1.7 (8.4 - 340 mm)
1 : 4.5 (900 mm)
M.O.D. from the Front of the Lens 3.05 m
Object dimensions at M.O.D.
16 : 9 Aspect ratio
1 × 8.4 mm   3053 × 1717 mm
900 mm   30 × 17 mm
2 × 16.8 mm   1594 × 896 mm
1800 mm   15 × 9 mm
Angular field of view
16 : 9 Aspect ratio
1 × 8.4 mm   59°26′ × 35°35′
900 mm   0°37′ × 0°21′
2 × 16.8 mm   31°52′ × 18°14′
1800 mm   0°18′ × 0°10′
Macro Available
Approx. Size (H x W x L) 258 × 264 × 610 mm
Weight (Lens hood excluded) 23.9 kg
  • Virtual, Serial Com
  • PC
  • Quick zoom
  • Zoom limit
  • Cruise zoom
Digi Power

With broadcasting technology rapidly converting to digital, Fujinon has developed a new digital servo control system, DIGI POWER, to enhance the performance of its zoom lenses. State-of-the-art components including a 32-bit RISC processor in the lens, a CPU in each servo demand, optical encoders and high-speed serial communication devices, together with the newly developed digital control circuit, provide 13-bit accuracy in zoom and focus control as well as a variety of new functions.

An RS232 connector in the lens provides a connection between the lens and a PC, or other control device, for external control. This function has made it possible to control the lens functions with the high degree of accuracy and reliability needed for virtual studio and other robotic applications, and to raise the level for all production environments.

Digital Quick Zoom
Quick Zoom speed is improved to 0.7 seconds end to end. Quick Zoom provides for a rapid zoom movement to the telephoto position to check focus with the simple push of a button. Releasing the button returns the lens to the previously selected zoom position. Quick Zoom can now be performed remotely from the ERD-T22 and ERD-10A-D01.



Fujinon's OS-TECH (Optical Stabilization) contains sensors to detect the slightest movement horizontally or vertically that could cause vibration. A correction signal is applied to the optical correction system, which helps to maintain a stable image while shooting from an unstable platform.


The following accessory kits are available for this model:

MM-21 All Manual w/ ERS-51B
MS-21D Digi Semi-Servo
MS-22D Digi Semi-Servo w/ Shot
SS-21D Digi Full Servo
SS-22D Digi Full w/ Servo Box


For detailed information regarding the full list of accessories available for this product, please refer to the Data & Spec Sheets