The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-200mm F2.8-5.6 Di III and the Tamron 17-35mm F2.8-4 Di OSD 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 28-200mm F2.8-5.6 Di III is the longer of the two lenses at 117mm. The Tamron 17-35mm F2.8-4 Di OSD with a length of 93mm, is 24mm shorter. On the other hand, the Tamron 17-35mm F2.8-4 Di OSD has a larger diameter of 84mm 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 Tamron 28-200mm F2.8-5.6 Di III and Tamron 17-35mm F2.8-4 Di OSD to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 28-200mm F2.8-5.6 Di III and the Tamron 17-35mm F2.8-4 Di OSD 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 17-35mm F2.8-4 Di OSD weighs 460g, 20% (116g) lighter than the Tamron 28-200mm F2.8-5.6 Di III's weight of 576g.
Filter Threads
The Tamron 28-200mm F2.8-5.6 Di III has a filter size of 67mm whereas the Tamron 17-35mm F2.8-4 Di OSD 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 67mm filters that we recommend you to consider for the Tamron 28-200mm F2.8-5.6 Di III:
And these are the 77mm filters that we recommend for the Tamron 17-35mm F2.8-4 Di OSD:
Lens Mounts
The Tamron 28-200mm F2.8-5.6 Di III has the Sony E lens mount whereas the Tamron 17-35mm F2.8-4 Di OSD has the Nikon F (FX) 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 Nikon D6 , Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Canon EF mount.
Focal Range
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 .
On the other hand, the Tamron 17-35mm F2.8-4 Di OSD has a focal range of 17-35mm and 2.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 25.5 - 52.5mm .
