The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 60-600mm F4.5-6.3 DG DN and the Tamron 18-300mm F3.5-6.3 Di 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. Sigma 60-600mm F4.5-6.3 DG DN is the longer of the two lenses at 279mm. The Tamron 18-300mm F3.5-6.3 Di with a length of 126mm, is 153mm shorter. Besides being longer, the Sigma 60-600mm F4.5-6.3 DG DN also has a larger diameter of 119mm 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 Sigma 60-600mm F4.5-6.3 DG DN and Tamron 18-300mm F3.5-6.3 Di to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 60-600mm F4.5-6.3 DG DN and the Tamron 18-300mm F3.5-6.3 Di 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, 75% (1875g) lighter than the Sigma 60-600mm F4.5-6.3 DG DN's weight of 2495g.
Filter Threads
The Sigma 60-600mm F4.5-6.3 DG DN has a filter size of 105mm whereas the Tamron 18-300mm F3.5-6.3 Di has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 105mm filters that we recommend you to consider for the Sigma 60-600mm F4.5-6.3 DG DN:
And these are the 67mm filters that we recommend for the Tamron 18-300mm F3.5-6.3 Di:
Lens Mounts
Both the Sigma 60-600mm F4.5-6.3 DG DN and the Tamron 18-300mm F3.5-6.3 Di 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 .
Sigma 60-600mm F4.5-6.3 DG DN is also available in the Leica L mount.
Tamron 18-300mm F3.5-6.3 Di is also available in Fujifilm X mount.
Focal Range
Sigma 60-600mm F4.5-6.3 DG DN has a focal range of 60-600mm 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
90 - 900mm .
On the other hand, the 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.