The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 50mm F1.8 STM and the Tamron 35mm F1.8 Di VC USD 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 35mm F1.8 Di VC USD is the longer of the two lenses at 81mm. The Canon RF 50mm F1.8 STM with a length of 41mm, is 40mm shorter. Besides being longer, the Tamron 35mm F1.8 Di VC USD also has a larger diameter of 80mm compared to the Canon RF 50mm F1.8 STM's 69mm diameter.
Below you can find a scaled side-by-side image of Canon RF 50mm F1.8 STM and Tamron 35mm F1.8 Di VC USD to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 50mm F1.8 STM and the Tamron 35mm F1.8 Di VC USD 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. Canon RF 50mm F1.8 STM weighs 160g, which means it is 320g (66%) lighter than the Tamron 35mm F1.8 Di VC USD which has a weight of 480g.
Filter Threads
The Canon RF 50mm F1.8 STM has a filter size of 43mm whereas the Tamron 35mm F1.8 Di VC USD 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 43mm filters that we recommend you to consider for the Canon RF 50mm F1.8 STM:
And these are the 67mm filters that we recommend for the Tamron 35mm F1.8 Di VC USD:
Lens Mounts
The Canon RF 50mm F1.8 STM has the Canon RF lens mount whereas the Tamron 35mm F1.8 Di VC USD has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Canon R6 V , Canon R6 III and Canon C50 for the Canon RF Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Tamron 35mm F1.8 Di VC USD is also available in Nikon F (FX) and Sony Alpha mounts.
Focal Range
Canon RF 50mm F1.8 STM is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
80mm .
On the other hand, the Tamron 35mm F1.8 Di VC USD is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 56mm .