The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-300 F4.5-6.3 Di III and the Tokina 300mm F6.3 MF Macro 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 70-300 F4.5-6.3 Di III is the longer of the two lenses at 148mm. The Tokina 300mm F6.3 MF Macro with a length of 66mm, is 82mm shorter. Besides being longer, the Tamron 70-300 F4.5-6.3 Di III also has a larger diameter of 77mm compared to the Tokina 300mm F6.3 MF Macro's 55mm 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 300mm F6.3 MF Macro weighs 298g, 45% (247g) lighter than the Tamron 70-300 F4.5-6.3 Di III's weight of 545g.
Filter Threads
The Tamron 70-300 F4.5-6.3 Di III has a filter size of 67mm whereas the Tokina 300mm F6.3 MF Macro has a 55mm 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 70-300 F4.5-6.3 Di III:
And these are the 55mm filters that we recommend for the Tokina 300mm F6.3 MF Macro:
Lens Mounts
The Tamron 70-300 F4.5-6.3 Di III has the Sony E lens mount whereas the Tokina 300mm F6.3 MF Macro has the Micro Four Thirds 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 OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Tamron 70-300 F4.5-6.3 Di III has a focal range of 70-300mm and
4.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105 - 450mm.
On the other hand, the Tokina 300mm F6.3 MF Macro is a prime lens with fixed focal lenght of 300mm which has an effective (full-frame 35mm equivalent) focal range of 600mm when used on a FourThirds format camera.
