The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina 70-200mm F4 and the Tokina 16-50mm f2.8 DX 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. Tokina 70-200mm F4 is the longer of the two lenses at 168mm. The Tokina 16-50mm f2.8 DX with a length of 97mm, is 71mm shorter. On the other hand, the Tokina 16-50mm f2.8 DX has a larger diameter of 84mm compared to the Tokina 70-200mm F4's 82mm 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. Tokina 16-50mm f2.8 DX weighs 610g, 37% (370g) lighter than the Tokina 70-200mm F4's weight of 980g.
Filter Threads
The Tokina 70-200mm F4 has a filter size of 67mm whereas the Tokina 16-50mm f2.8 DX 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 Tokina 70-200mm F4:
And these are the 77mm filters that we recommend for the Tokina 16-50mm f2.8 DX:
Lens Mounts
The Tokina 70-200mm F4 has the Nikon F (FX) lens mount whereas the Tokina 16-50mm f2.8 DX 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.
Tokina 16-50mm f2.8 DX is also available in Nikon F (DX) mount.
Focal Range
Tokina 70-200mm F4 has a focal range of 70-200mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105 - 300mm.
On the other hand, the Tokina 16-50mm f2.8 DX has a focal range of 16-50mm and 3.1X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 25.6-80mm when used on a APS-C / DX format camera.