The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang MF 85mm F1.4 Mk2 and the Canon EF 70-200 F2.8L IS III USM 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. Canon EF 70-200 F2.8L IS III USM is the longer of the two lenses at 199mm. The Samyang MF 85mm F1.4 Mk2 with a length of 75mm, is 124mm shorter. Besides being longer, the Canon EF 70-200 F2.8L IS III USM also has a larger diameter of 89mm compared to the Samyang MF 85mm F1.4 Mk2's 78mm 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. Samyang MF 85mm F1.4 Mk2 weighs 548g, which means it is 892g (61%) lighter than the Canon EF 70-200 F2.8L IS III USM which has a weight of 1440g.
Filter Threads
The Samyang MF 85mm F1.4 Mk2 has a filter size of 72mm whereas the Canon EF 70-200 F2.8L IS III USM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Samyang MF 85mm F1.4 Mk2:
And these are the 77mm filters that we recommend for the Canon EF 70-200 F2.8L IS III USM:
Lens Mounts
Both the Samyang MF 85mm F1.4 Mk2 and the Canon EF 70-200 F2.8L IS III USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Samyang MF 85mm F1.4 Mk2 is also available in the Canon EF-M , Fujifilm X, Micro Four Thirds, Nikon F (FX) and Sony E mounts.
Focal Range
Samyang MF 85mm F1.4 Mk2 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
136mm.
On the other hand, the Canon EF 70-200 F2.8L IS III USM has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 112 - 320mm.