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 Panasonic 45-150mm F4-5.6 OIS 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 Panasonic 45-150mm F4-5.6 OIS with a length of 73mm, is 133mm shorter. Besides being longer, the Fujinon MK 50-135mm T2.9 also has a larger diameter of 85mm compared to the Panasonic 45-150mm F4-5.6 OIS's 62mm 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. Panasonic 45-150mm F4-5.6 OIS weighs 200g, 79% (780g) 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 Panasonic 45-150mm F4-5.6 OIS has a 52mm 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 52mm filters that we recommend for the Panasonic 45-150mm F4-5.6 OIS:
Lens Mounts
The Fujinon MK 50-135mm T2.9 has the Sony E lens mount whereas the Panasonic 45-150mm F4-5.6 OIS 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 Panasonic 45-150mm F4-5.6 OIS has a focal range of 45-150mm and 3.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 90-300mm when used on a FourThirds format camera.