The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujinon MK 50-135mm T2.9 and the Olympus ED 40-150mm F2.8 Pro for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Fujinon MK 50-135mm T2.9 is the longer of the two lenses at 206mm. The Olympus ED 40-150mm F2.8 Pro with a length of 160mm, is 46mm shorter. Besides being longer, the Fujinon MK 50-135mm T2.9 also has a larger diameter of 85mm compared to the Olympus ED 40-150mm F2.8 Pro's 79mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Olympus ED 40-150mm F2.8 Pro weighs 760g, 22% (220g) lighter than the Fujinon MK 50-135mm T2.9's weight of 980g.
Filter Threads
The Fujinon MK 50-135mm T2.9 has a filter size of 82mm whereas the Olympus ED 40-150mm F2.8 Pro has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Fujinon MK 50-135mm T2.9:
And these are the 72mm filters that we recommend for the Olympus ED 40-150mm F2.8 Pro:
Lens Mounts
The Fujinon MK 50-135mm T2.9 has the Sony E lens mount whereas the Olympus ED 40-150mm F2.8 Pro has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A9 III, Sony A7C Mark II and Sony A7CR for the Sony E Mount and OM System OM-1 II, Panasonic G9 II and OM System OM-5 for the Micro Four Thirds Mount.
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 a 35mm (FF) equivalent of
75 - 202.5mm.
On the other hand, the Olympus ED 40-150mm F2.8 Pro has a focal range of 40-150mm and 3.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 80-300mm when used on a FourThirds format camera.