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 Sony FE 70-300mm F4.5-5.6 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 Sony FE 70-300mm F4.5-5.6 with a length of 144mm, is 4mm shorter. On the other hand, the Sony FE 70-300mm F4.5-5.6 has a larger diameter of 84mm compared to the Tamron 70-300 F4.5-6.3 Di III's 77mm diameter.
Below you can find a scaled side-by-side image of Tamron 70-300 F4.5-6.3 Di III and Sony FE 70-300mm F4.5-5.6 to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 70-300 F4.5-6.3 Di III and the Sony FE 70-300mm F4.5-5.6 Size and Weight 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 70-300 F4.5-6.3 Di III weighs 545g, which means it is 309g (36%) lighter than the Sony FE 70-300mm F4.5-5.6 which has a weight of 854g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Sony E Mount for size comparison purposes.
Telephoto Sony E Mount
Filter Threads
The Tamron 70-300 F4.5-6.3 Di III has a filter size of 67mm whereas the Sony FE 70-300mm F4.5-5.6 has a 72mm 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 72mm filters that we recommend for the Sony FE 70-300mm F4.5-5.6:
Lens Mounts
Both the Tamron 70-300 F4.5-6.3 Di III and the Sony FE 70-300mm F4.5-5.6 has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Focal Range
Both lenses have the same focal range of
70-300mm but while Tamron 70-300 F4.5-6.3 Di III has the fastest aperture of
F4.5-6.3 , the Sony FE 70-300mm F4.5-5.6's widest aperture value is
F4.5 - F5.6 .
