The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-180mm F2.8 Di G2 and the Sirui Sniper 75mm f1.2 Z 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. Tamron 70-180mm F2.8 Di G2 is the longer of the two lenses at 158mm. The Sirui Sniper 75mm f1.2 Z with a length of 96mm, is 62mm shorter. Besides being longer, the Tamron 70-180mm F2.8 Di G2 also has a larger diameter of 83mm compared to the Sirui Sniper 75mm f1.2 Z's 80mm 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. Sirui Sniper 75mm f1.2 Z weighs 475g, 45% (390g) lighter than the Tamron 70-180mm F2.8 Di G2's weight of 865g.
Filter Threads
Both the Tamron 70-180mm F2.8 Di G2 and the Sirui Sniper 75mm f1.2 Z have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 70-180mm F2.8 Di G2 and the Sirui Sniper 75mm f1.2 Z has the same Nikon Z lens mount. Some of the latest released cameras that are compatible with the Nikon Z lenses are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z.
Tamron 70-180mm F2.8 Di G2 is also available in the Sony E mount.
Focal Range
Tamron 70-180mm F2.8 Di G2 has a focal range of 70-180mm and
2.6X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105 - 270mm.
On the other hand, the Sirui Sniper 75mm f1.2 Z is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of 112.5mm when used on a APS-C / DX format camera.
