The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 18-300mm F3.5-6.3 Di III-A and the Fujifilm XF 16-80mm F4 R OIS WR 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 18-300mm F3.5-6.3 Di III-A is the longer of the two lenses at 126mm. The Fujifilm XF 16-80mm F4 R OIS WR with a length of 89mm, is 37mm shorter. On the other hand, the Fujifilm XF 16-80mm F4 R OIS WR has a larger diameter of 78mm compared to the Tamron 18-300mm F3.5-6.3 Di III-A's 76mm diameter.
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Below you can find a scaled side-by-side image of Tamron 18-300mm F3.5-6.3 Di III-A and Fujifilm XF 16-80mm F4 R OIS WR to get a better idea of how their sizes compare in real life.
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. Fujifilm XF 16-80mm F4 R OIS WR weighs 440g, 29% (180g) lighter than the Tamron 18-300mm F3.5-6.3 Di III-A's weight of 620g.
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Filter Threads
The Tamron 18-300mm F3.5-6.3 Di III-A has a filter size of 67mm whereas the Fujifilm XF 16-80mm F4 R OIS WR 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 18-300mm F3.5-6.3 Di III-A:
And these are the 72mm filters that we recommend for the Fujifilm XF 16-80mm F4 R OIS WR:
Lens Mounts
Both the Tamron 18-300mm F3.5-6.3 Di III-A and the Fujifilm XF 16-80mm F4 R OIS WR has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-S20, Fujifilm X-T5 and Fujifilm X-H2.
Tamron 18-300mm F3.5-6.3 Di III-A is also available in Sony E mount.
Focal Range
Tamron 18-300mm F3.5-6.3 Di III-A has a focal range of 18-300mm and
16.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
27-450mm when used on a APS-C / DX format camera.
On the other hand, the Fujifilm XF 16-80mm F4 R OIS WR has a focal range of 16-80mm and 5.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-120mm when used on a APS-C / DX format camera.