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 and the Sigma 18-50mm F2.8 DC DN C RF 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 is the longer of the two lenses at 126mm. The Sigma 18-50mm F2.8 DC DN C RF with a length of 75mm, is 51mm shorter. Besides being longer, the Tamron 18-300mm F3.5-6.3 also has a larger diameter of 76mm compared to the Sigma 18-50mm F2.8 DC DN C RF's 69mm diameter.
Below you can find a scaled side-by-side image of Tamron 18-300mm F3.5-6.3 and Sigma 18-50mm F2.8 DC DN C RF to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 18-300mm F3.5-6.3 and the Sigma 18-50mm F2.8 DC DN C RF 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. Sigma 18-50mm F2.8 DC DN C RF weighs 300g, 51% (320g) lighter than the Tamron 18-300mm F3.5-6.3's weight of 620g.
Filter Threads
The Tamron 18-300mm F3.5-6.3 has a filter size of 67mm whereas the Sigma 18-50mm F2.8 DC DN C RF has a 55mm 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:
And these are the 55mm filters that we recommend for the Sigma 18-50mm F2.8 DC DN C RF:
Lens Mounts
Both the Tamron 18-300mm F3.5-6.3 and the Sigma 18-50mm F2.8 DC DN C RF has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R50 V , Canon R100 and Canon R50 .
Focal Range
Tamron 18-300mm F3.5-6.3 has a focal range of 18-300mm and
16.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
28.8-480mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 18-50mm F2.8 DC DN C RF has a focal range of 18-50mm and 2.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28.8-80mm when used on a APS-C / DX format camera.
