The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-300mm F4-7.1 and the Tokina 50-135mm 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 50-135mm f2.8 DX is the longer of the two lenses at 135mm. The Tamron 28-300mm F4-7.1 with a length of 126mm, is 9mm shorter. Besides being longer, the Tokina 50-135mm f2.8 DX also has a larger diameter of 78mm compared to the Tamron 28-300mm F4-7.1's 77mm 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 28-300mm F4-7.1 weighs 610g, which means it is 235g (27%) lighter than the Tokina 50-135mm f2.8 DX which has a weight of 845g.
Filter Threads
Both the Tamron 28-300mm F4-7.1 and the Tokina 50-135mm f2.8 DX 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 28-300mm F4-7.1 has the Sony E lens mount whereas the Tokina 50-135mm f2.8 DX has the Canon EF 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 Canon T8i, Canon 90D and Canon SL3 for the Canon EF Mount.
Tokina 50-135mm f2.8 DX is also available in Nikon F (DX) mount.
Focal Range
Tamron 28-300mm F4-7.1 has a focal range of 28-300mm and
10.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 450mm.
On the other hand, the Tokina 50-135mm f2.8 DX has a focal range of 50-135mm and 2.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 80-216mm when used on a APS-C / DX format camera.
