The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samsung D-Xenon 50-200 F4-5.6 ED and the Rokinon 85mm F1.4 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. Samsung D-Xenon 50-200 F4-5.6 ED is the longer of the two lenses at 79mm. The Rokinon 85mm F1.4 with a length of 75mm, is 4mm shorter. On the other hand, the Rokinon 85mm F1.4 has a larger diameter of 78mm compared to the Samsung D-Xenon 50-200 F4-5.6 ED's 67mm 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. Samsung D-Xenon 50-200 F4-5.6 ED weighs 255g, which means it is 284g (52%) lighter than the Rokinon 85mm F1.4 which has a weight of 539g.
Filter Threads
The Samsung D-Xenon 50-200 F4-5.6 ED has a filter size of 52mm whereas the Rokinon 85mm F1.4 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 52mm filters that we recommend you to consider for the Samsung D-Xenon 50-200 F4-5.6 ED:
And these are the 72mm filters that we recommend for the Rokinon 85mm F1.4:
Lens Mounts
The Samsung D-Xenon 50-200 F4-5.6 ED has the Pentax KAF2 lens mount whereas the Rokinon 85mm F1.4 has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Pentax KAF2 Mount and Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Rokinon 85mm F1.4 is also available in Canon EF , Four Thirds, Sony Alpha, Samsung NX and Nikon F (FX) mounts.
Focal Range
Samsung D-Xenon 50-200 F4-5.6 ED has a focal range of 50-200mm and
4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
75-300mm when used on a APS-C / DX format camera.
On the other hand, the Rokinon 85mm F1.4 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 127.5mm.
