The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 18-200mm f3.5-6.3 III VC and the Sigma 18-200mm F3.5-6.3 DC OS HSM C 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 18-200mm f3.5-6.3 III VC is the longer of the two lenses at 97mm. The Sigma 18-200mm F3.5-6.3 DC OS HSM C with a length of 86mm, is 11mm shorter. On the other hand, the Sigma 18-200mm F3.5-6.3 DC OS HSM C has a larger diameter of 71mm compared to the Tamron 18-200mm f3.5-6.3 III VC's 68mm 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 18-200mm F3.5-6.3 DC OS HSM C weighs 430g, 6% (30g) lighter than the Tamron 18-200mm f3.5-6.3 III VC's weight of 460g.
Filter Threads
Both the Tamron 18-200mm f3.5-6.3 III VC and the Sigma 18-200mm F3.5-6.3 DC OS HSM C have the same Filter thread size of 62mm.
Below are links to the 62mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron 18-200mm f3.5-6.3 III VC has the Sony E lens mount whereas the Sigma 18-200mm F3.5-6.3 DC OS HSM C has the Sony Alpha lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Sony A68, Sony A77 II and Sony A58 for the Sony Alpha Mount.
Sigma 18-200mm F3.5-6.3 DC OS HSM C is also available in Canon EF , Nikon F (DX), Pentax KAF3 and Sigma SA mounts.
Focal Range
Both lenses have the same focal range of
18-200mm and the fastest aperture of
F3.5 - F6.3.
