The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-200mm f2.8 LD and the Sigma 70-200mm F2.8 EX DG HSM II 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 70-200mm f2.8 LD is the longer of the two lenses at 194mm. The Sigma 70-200mm F2.8 EX DG HSM II with a length of 184mm, is 10mm shorter. Besides being longer, the Tamron 70-200mm f2.8 LD also has a larger diameter of 90mm compared to the Sigma 70-200mm F2.8 EX DG HSM II's 87mm 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, which means it is 60g (4%) lighter than the Sigma 70-200mm F2.8 EX DG HSM II which has a weight of 1390g.
Filter Threads
Both the Tamron 70-200mm f2.8 LD and the Sigma 70-200mm F2.8 EX DG HSM II 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 Tamron 70-200mm f2.8 LD has the Pentax KAF lens mount whereas the Sigma 70-200mm F2.8 EX DG HSM II has the Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with these mounts are Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount and , and for the Pentax KAF3 Mount.
Tamron 70-200mm f2.8 LD is also available in the Canon EF , Nikon F (FX) and Sony Alpha mounts.
Sigma 70-200mm F2.8 EX DG HSM II is also available in Canon EF , Four Thirds, Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
70-200mm and the fastest aperture of
F2.8.
