The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-210mm F4 Di VC USD and the Tamron 100-400mm F4.5-6.3 Di VC USD 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 100-400mm F4.5-6.3 Di VC USD is the longer of the two lenses at 199mm. The Tamron 70-210mm F4 Di VC USD with a length of 175mm, is 24mm shorter. Besides being longer, the Tamron 100-400mm F4.5-6.3 Di VC USD also has a larger diameter of 86mm compared to the Tamron 70-210mm F4 Di VC USD's 76mm 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 70-210mm F4 Di VC USD weighs 859g, which means it is 276g (24%) lighter than the Tamron 100-400mm F4.5-6.3 Di VC USD which has a weight of 1135g.
Filter Threads
Both the Tamron 70-210mm F4 Di VC USD and the Tamron 100-400mm F4.5-6.3 Di VC USD have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron 70-210mm F4 Di VC USD has the Canon EF lens mount whereas the Tamron 100-400mm F4.5-6.3 Di VC USD has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Tamron 70-210mm F4 Di VC USD is also available in the Nikon F (FX) mount.
Tamron 100-400mm F4.5-6.3 Di VC USD is also available in Canon EF mount.
Focal Range
Tamron 70-210mm F4 Di VC USD has a focal range of 70-210mm and
3.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
112 - 336mm.
On the other hand, the Tamron 100-400mm F4.5-6.3 Di VC USD has a focal range of 100-400mm and 4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 150 - 600mm.
