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Fujinon MK50-135mm T2.9 for Sony E
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Fujinon MK50-135mm T2.9 for Sony E

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The Fujinon MK50-135mm T2.9 for Sony E is a lightweight cine-style zoom for Sony E-mount cameras. Key features include:

  • Fast T2.9 clickless aperture

  • Parfocal with minimum focus breathing

  • Geared focus, iris, and zoom rings

  • Native Sony E-mount

Featherweight. The first thing you’ll notice when you pick up the Fujinon MK50-135mm T2.9 for Sony E is that it’s beyond light. It weighs in at just north of two pounds, which means you can mount it without an additional lens support. Its light weight also makes it a prime candidate for gimbal work.

High-Quality Optics. The lens features a fast T2.9 clickless aperture, controlled by nine rounded blades. It’s color matched to compliment Fujinon’s higher-end offerings, and the 28.5mm diameter image circle covers the APS-C/Super 35 sensor format with a 16:9 aspect ratio.

Cine Style. Unlike many other Sony E-mount “cine” lenses, the MK50-135mm is truly a cinema lens with a full cinema feature set. The focus, iris, and zoom rings all have industry-standard 0.8 gears. The focus ring gives you precise control over pulls and follows with 200° of rotation, while the iris ring is de-clicked with a smooth action allowing you adjust exposure mid-shot. This lens has a short flange focal distance, but it allows flange focal distance adjustment so you can fine tune it to the camera you’re using. It offers a macro-focus mode that shortens the minimum focusing distance from roughly four feet to just under three feet.

Parfocal This term is thrown around a good bit, but many lenses that claim it are not truly parfocal. Instead, they’re close enough that many won’t notice. Well not this one. The MK50-135mm is a true parfocal lens.

Q & A

Will this lens cover full-frame sensors?

  • If you plan on using this lens with a Sony A7-series camera, like the A7S, A7R II, or A7S II, please be aware that it’s only compatible in crop mode.

Should I use additional support with this lens?

  • We recommend using a rail support system and lens support. We have provided links to our universal baseplates in the “recommended” column. When in doubt, please contact us at 877.578.4777, M-F, 9AM-5PM EST or at

Does this lens come equipped with focus gears?

  • Not only does this lens come equipped with focus gears, it also comes with geared iris and zoom controls. Each gear features an industry-standard 0.8 pitch.


Mount Type E-Mount
Image Circle 28.5 mm diameter (supports 24.84 x 13.97 mm sensors)
Focal Length 50 - 135mm
Aperture T2.9 to T22 and closed
Iris Blades 9
Gear Mod 0.8
Focus Rotation 200°
Minimum Focus Distance Standard: 3'11" / 1.2 m
Macro: 2'9"' / 0.85 m
Object Dimensions at M.O.D. (16:9) 50mm: 21.0 x 11.8" / 534 x 300 mm
135mm: 7.7 x 4.3" / 196 x 110 mm
Angle of View (16:9) 50 mm: 27.9° x 15.9°
135 mm: 17° 20' x 9° 48'
Macro Available
Front Diameter Filter Thread: 82 mm
Outside diameter: 85 mm
Length 8.12" / 20.63 cm
Weight 2.16 lb / 0.98 kg

Fujinon MK50-135mm T2.9 for Sony E

82mm Front Lens Cap

Hood - Fujinon MK50-135mm

Hood - Fujinon MK/ENG Hood Cap

Sony Rear Lens Cap