Fujinon MK 50-135mm T2.9 is a Manual Focus (MF)
Telephoto Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Sony E mount cameras.
Lens Mount
Fujinon MK 50-135mm T2.9 is compatible with cameras that have
Sony E lens mount. Some of the latest released cameras with Sony E lens mount are
Sony ZV-E10,
Sony A1 and
Sony A7c.
Sensor Coverage
Max sensor coverage of Fujinon MK 50-135mm T2.9 is
35mm FF.
Focal Range
Fujinon MK 50-135mm T2.9 has a focal range of 50-135mm and 2.7X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 75 - 202.5mm.
Zoom Method
Fujinon MK 50-135mm T2.9 features
Rotary (internal) zoom method where the length of the lens doesn't change while you are zooming in or out. Even though this design has a size disadvantage in general compare to extending designs, it has the benefits of better sealing against dust and moisture, no zoom creep and no weight balance shift while zooming.
Aperture
Fujinon MK 50-135mm T2.9 is a fixed aperture lens with a constant max aperture of f2.8 from 50mm all the way to the 135mm .