The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70-200mm f2.8 Sports and the Samyang AF 135mm F1.8 FE 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. Sigma 70-200mm f2.8 Sports is the longer of the two lenses at 205mm. The Samyang AF 135mm F1.8 FE with a length of 130mm, is 75mm shorter. On the other hand, the Samyang AF 135mm F1.8 FE has a larger diameter of 93mm compared to the Sigma 70-200mm f2.8 Sports's 91mm diameter.
Below you can find a scaled side-by-side image of Sigma 70-200mm f2.8 Sports and Samyang AF 135mm F1.8 FE to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 70-200mm f2.8 Sports and the Samyang AF 135mm F1.8 FE Size and Weight 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 AF 135mm F1.8 FE weighs 772g, 42% (573g) lighter than the Sigma 70-200mm f2.8 Sports's weight of 1345g.
Filter Threads
The Sigma 70-200mm f2.8 Sports has a filter size of 77mm whereas the Samyang AF 135mm F1.8 FE has a 82mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Sigma 70-200mm f2.8 Sports:
And these are the 82mm filters that we recommend for the Samyang AF 135mm F1.8 FE:
Lens Mounts
Both the Sigma 70-200mm f2.8 Sports and the Samyang AF 135mm F1.8 FE has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Focal Range
Sigma 70-200mm f2.8 Sports has a focal range of 70-200mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105 - 300mm .
On the other hand, the Samyang AF 135mm F1.8 FE is a prime lens with fixed focal lenght of 135mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 202.5mm .
