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 and the Fujifilm XF 100-400mm 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. Fujifilm XF 100-400mm F4.5-5.6 is the longer of the two lenses at 211mm. The Tamron 18-300mm F3.5-6.3 Di with a length of 126mm, is 85mm shorter. Besides being longer, the Fujifilm XF 100-400mm F4.5-5.6 also has a larger diameter of 95mm compared to the Tamron 18-300mm F3.5-6.3 Di's 76mm diameter.
Below you can find a scaled side-by-side image of Tamron 18-300mm F3.5-6.3 Di and Fujifilm XF 100-400mm F4.5-5.6 to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 18-300mm F3.5-6.3 Di and the Fujifilm XF 100-400mm 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 18-300mm F3.5-6.3 Di weighs 620g, which means it is 755g (54%) lighter than the Fujifilm XF 100-400mm F4.5-5.6 which has a weight of 1375g.
Filter Threads
The Tamron 18-300mm F3.5-6.3 Di has a filter size of 67mm whereas the Fujifilm XF 100-400mm F4.5-5.6 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 Tamron 18-300mm F3.5-6.3 Di:
And these are the 77mm filters that we recommend for the Fujifilm XF 100-400mm F4.5-5.6:
Lens Mounts
Both the Tamron 18-300mm F3.5-6.3 Di and the Fujifilm XF 100-400mm F4.5-5.6 has the same Fujifilm X lens mount . Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 .
Focal Range
Tamron 18-300mm F3.5-6.3 Di 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 100-400mm F4.5-5.6 has a focal range of 100-400mm and 4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 150-600mm when used on a APS-C / DX format camera.
