The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 40-150mm F4.0 PRO and the Samyang MF 85mm F1.4 Mk2 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. OM System 40-150mm F4.0 PRO is the longer of the two lenses at 99mm. The Samyang MF 85mm F1.4 Mk2 with a length of 75mm, is 24mm shorter. On the other hand, the Samyang MF 85mm F1.4 Mk2 has a larger diameter of 78mm compared to the OM System 40-150mm F4.0 PRO's 69mm 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. OM System 40-150mm F4.0 PRO weighs 382g, which means it is 166g (30%) lighter than the Samyang MF 85mm F1.4 Mk2 which has a weight of 548g.
Filter Threads
The OM System 40-150mm F4.0 PRO has a filter size of 62mm whereas the Samyang MF 85mm F1.4 Mk2 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 62mm filters that we recommend you to consider for the OM System 40-150mm F4.0 PRO:
And these are the 72mm filters that we recommend for the Samyang MF 85mm F1.4 Mk2:
Lens Mounts
Both the OM System 40-150mm F4.0 PRO and the Samyang MF 85mm F1.4 Mk2 has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-3 Astro, OM System OM-5 II and OM System OM-3.
Samyang MF 85mm F1.4 Mk2 is also available in Canon EF , Canon EF-M, Fujifilm X, Nikon F (FX) and Sony E mounts.
Focal Range
OM System 40-150mm F4.0 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.
On the other hand, the Samyang MF 85mm F1.4 Mk2 is a prime lens with fixed focal lenght of 85mm.
