The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 135mm F2.0 ED UMC and the Carl Zeiss Apo Sonnar T2/135 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. Carl Zeiss Apo Sonnar T2/135 is the longer of the two lenses at 128mm. The Samyang 135mm F2.0 ED UMC with a length of 122mm, is 6mm shorter. Besides being longer, the Carl Zeiss Apo Sonnar T2/135 also has a larger diameter of 84mm compared to the Samyang 135mm F2.0 ED UMC's 82mm 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 135mm F2.0 ED UMC weighs 830g, which means it is 90g (9%) lighter than the Carl Zeiss Apo Sonnar T2/135 which has a weight of 920g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Canon EF Mount for size comparison purposes.
Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
Both the Samyang 135mm F2.0 ED UMC and the Carl Zeiss Apo Sonnar T2/135 have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Samyang 135mm F2.0 ED UMC and the Carl Zeiss Apo Sonnar T2/135 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 135mm F2.0 ED UMC is also available in the Canon EF-M , Four Thirds, Fujifilm X, Micro Four Thirds, Nikon F (FX), Pentax KAF, Samsung NX, Sony Alpha and Sony E mounts.
Carl Zeiss Apo Sonnar T2/135 is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
135mm and the fastest aperture of
F2.