The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 17-35mm F2.8-4 Di OSD and the Tamron 16-300mm f3.5-6.3 II VC PZD 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 16-300mm f3.5-6.3 II VC PZD is the longer of the two lenses at 100mm. The Tamron 17-35mm F2.8-4 Di OSD with a length of 93mm, is 7mm shorter. On the other hand, the Tamron 17-35mm F2.8-4 Di OSD has a larger diameter of 84mm compared to the Tamron 16-300mm f3.5-6.3 II VC PZD's 75mm 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 17-35mm F2.8-4 Di OSD weighs 460g, which means it is 80g (14%) lighter than the Tamron 16-300mm f3.5-6.3 II VC PZD which has a weight of 540g.
Filter Threads
The Tamron 17-35mm F2.8-4 Di OSD has a filter size of 77mm whereas the Tamron 16-300mm f3.5-6.3 II VC PZD 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 77mm filters that we recommend you to consider for the Tamron 17-35mm F2.8-4 Di OSD:
And these are the 67mm filters that we recommend for the Tamron 16-300mm f3.5-6.3 II VC PZD:
Lens Mounts
The Tamron 17-35mm F2.8-4 Di OSD has the Nikon F (FX) lens mount whereas the Tamron 16-300mm f3.5-6.3 II VC PZD has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF Mount.
Tamron 17-35mm F2.8-4 Di OSD is also available in the Canon EF mount.
Tamron 16-300mm f3.5-6.3 II VC PZD is also available in Nikon F (DX) and Sony Alpha mounts.
Focal Range
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.
On the other hand, the Tamron 16-300mm f3.5-6.3 II VC PZD has a focal range of 16-300mm and 18.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 25.6-480mm when used on a APS-C / DX format camera.
