The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 28-105mm f2.8 and the Tamron 28-200mm F2.8-5.6 Di III 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 28-105mm f2.8 is the longer of the two lenses at 158mm. The Tamron 28-200mm F2.8-5.6 Di III with a length of 117mm, is 41mm shorter. Besides being longer, the Sigma 28-105mm f2.8 also has a larger diameter of 88mm compared to the Tamron 28-200mm F2.8-5.6 Di III's 74mm diameter.
Below you can find a scaled side-by-side image of Sigma 28-105mm f2.8 and Tamron 28-200mm F2.8-5.6 Di III to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 28-105mm f2.8 and the Tamron 28-200mm F2.8-5.6 Di III Size and Weight 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 28-200mm F2.8-5.6 Di III weighs 576g, 42% (419g) lighter than the Sigma 28-105mm f2.8's weight of 995g.
Filter Threads
The Sigma 28-105mm f2.8 has a filter size of 82mm whereas the Tamron 28-200mm F2.8-5.6 Di III has a 67mm 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 Sigma 28-105mm f2.8:
And these are the 67mm filters that we recommend for the Tamron 28-200mm F2.8-5.6 Di III:
Lens Mounts
Both the Sigma 28-105mm f2.8 and the Tamron 28-200mm F2.8-5.6 Di III has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Focal Range
Sigma 28-105mm f2.8 has a focal range of 28-105mm and
3.8X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 157.5mm .
On the other hand, the Tamron 28-200mm F2.8-5.6 Di III has a focal range of 28-200mm and 7.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 42 - 300mm .
