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25-300mm T3.5-3.8   versatile zoom

The all-new ZK12x25 offers the industry-leading zoom ratio of 12x to cover the most frequently-used 25mm wide angle to 300mm on the telephoto end. With its advanced optical performance supporting 4K cameras, the lens delivers a premium image quality across a versatile range of shooting scenes.
The ZK12x25 also supports an optional detachable drive unit for electric zooming, focusing and iris. Mounting the drive unit enables the remote control of zooming, focusing and iris adjustment. The availability of the Zoom Rate and Focus Position Demand controls means the lens offers the operability equivalent to conventional TV camera lenses.


  • A versatile high zoom ratio lens covering focal lengths from 25mm to 300mm
  • Outstanding 4K optical performance
  • Super 35mm large format coverage
  • Back Focus Adjustment with Macro Function
  • Natural Bokeh(Blur) thanks to 9-Brades Round Iris
  • Optionally Drive Unit is available
FUJINON Cine Lens Microsite


Model name ZK12x25
Application 35mm PL Mount Camera
Focal length 25-300mm
Zoom raito 12x
T-no. T3.5 (25-273mm)   T3.85 (300mm)
Iris blades 9
M.O.D.from image planes 1.2m / 4'
Object dimensions at M.O.D.
1.78 : 1 Aspect raito*
25mm   937 x 527mm
300mm   77 x 43mm
Angular field of view
1.78 : 1 Aspect raito*
25mm   57°32' x 34°19'
300mm   5°14' x 2°57'
Focus rotation 280°
Zoom rotation 120°
Size (φ x Length) φ136 x 401mm
Mass 8.4kg (without Drive Unit)
  • * Sensor Size : 27.45 x 15.44mm
FUJINON Cine Lens Microsite