The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 35-150mm F2-2.8 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. Sigma 70-200mm F2.8 EX DG HSM II is the longer of the two lenses at 184mm. The Tamron 35-150mm F2-2.8 with a length of 158mm, is 26mm shorter. On the other hand, the Tamron 35-150mm F2-2.8 has a larger diameter of 89mm 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 35-150mm F2-2.8 weighs 1165g, which means it is 225g (16%) lighter than the Sigma 70-200mm F2.8 EX DG HSM II which has a weight of 1390g.
Filter Threads
The Tamron 35-150mm F2-2.8 has a filter size of 82mm whereas the Sigma 70-200mm F2.8 EX DG HSM II has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Tamron 35-150mm F2-2.8:
And these are the 77mm filters that we recommend for the Sigma 70-200mm F2.8 EX DG HSM II:
Lens Mounts
The Tamron 35-150mm F2-2.8 has the Sony E lens mount whereas the Sigma 70-200mm F2.8 EX DG HSM II has the Four Thirds 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 Olympus E-5, Olympus E-600 and Olympus E-620 for the Four Thirds Mount.
Tamron 35-150mm F2-2.8 is also available in the Nikon Z mount.
Sigma 70-200mm F2.8 EX DG HSM II is also available in Canon EF , Pentax KAF3, Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Focal Range
Tamron 35-150mm F2-2.8 has a focal range of 35-150mm and
4.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
52.5 - 225mm.
On the other hand, the Sigma 70-200mm F2.8 EX DG HSM II has a focal range of 70-200mm and 2.9X zoom ratio .