The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony 75-300mm F4.5-5.6 and the Sigma 50-200mm F4-5.6 DC OS HSM 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. Sony 75-300mm F4.5-5.6 is the longer of the two lenses at 122mm. The Sigma 50-200mm F4-5.6 DC OS HSM with a length of 102mm, is 20mm shorter. On the other hand, the Sigma 50-200mm F4-5.6 DC OS HSM has a larger diameter of 74mm compared to the Sony 75-300mm F4.5-5.6's 71mm 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. Sigma 50-200mm F4-5.6 DC OS HSM weighs 420g, 8% (40g) lighter than the Sony 75-300mm F4.5-5.6's weight of 460g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Sony Alpha Mount for size comparison purposes.
Telephoto Lenses in Sony Alpha Mount for Size Comparison
Filter Threads
Both the Sony 75-300mm F4.5-5.6 and the Sigma 50-200mm F4-5.6 DC OS HSM have the same Filter thread size of 55mm.
Below are links to the 55mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sony 75-300mm F4.5-5.6 and the Sigma 50-200mm F4-5.6 DC OS HSM has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Sigma 50-200mm F4-5.6 DC OS HSM is also available in Canon EF , Pentax KAF3, Sigma SA and Nikon F (DX) mounts.
Focal Range
Sony 75-300mm F4.5-5.6 has a focal range of 75-300mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
112.5 - 450mm.
On the other hand, the Sigma 50-200mm F4-5.6 DC OS HSM 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.
