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 Sony FE 24-240mm F3.5-6.3 OSS 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 Sony FE 24-240mm F3.5-6.3 OSS with a length of 119mm, is 7mm shorter. On the other hand, the Sony FE 24-240mm F3.5-6.3 OSS has a larger diameter of 81mm 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 Sony FE 24-240mm F3.5-6.3 OSS 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. Tamron 18-300mm F3.5-6.3 Di III-A weighs 620g, which means it is 160g (20%) lighter than the Sony FE 24-240mm F3.5-6.3 OSS which has a weight of 780g.
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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 Sony FE 24-240mm F3.5-6.3 OSS 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 Sony FE 24-240mm F3.5-6.3 OSS:
Lens Mounts
Both the Tamron 18-300mm F3.5-6.3 Di III-A and the Sony FE 24-240mm F3.5-6.3 OSS has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A6700, Sony FX30 and Sony ZV-E10.
Tamron 18-300mm F3.5-6.3 Di III-A is also available in Fujifilm X 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 Sony FE 24-240mm F3.5-6.3 OSS has a focal range of 24-240mm and 10.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36 - 360mm.