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 Tamron 70-200mm f2.8 LD 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 Tamron 70-200mm f2.8 LD with a length of 194mm, is 11mm shorter. Besides being longer, the Sigma 70-200mm f2.8 Sports also has a larger diameter of 91mm compared to the Tamron 70-200mm f2.8 LD's 90mm 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. Tamron 70-200mm f2.8 LD weighs 1330g, 1% (15g) lighter than the Sigma 70-200mm f2.8 Sports's weight of 1345g.
Filter Threads
Both the Sigma 70-200mm f2.8 Sports and the Tamron 70-200mm f2.8 LD 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
The Sigma 70-200mm f2.8 Sports has the Sony E lens mount whereas the Tamron 70-200mm f2.8 LD has the Sony Alpha lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Sigma 70-200mm f2.8 Sports is also available in the Leica L mount.
Tamron 70-200mm f2.8 LD is also available in Canon EF , Nikon F (FX) and Pentax KAF mounts.
Focal Range
Both lenses have the same focal range of
70-200mm and the fastest aperture of
F2.8.
