The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 14-35mm F4L IS USM and the Tamron 15-30mm f2.8 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 15-30mm f2.8 VC USD is the longer of the two lenses at 145mm. The Canon RF 14-35mm F4L IS USM with a length of 100mm, is 45mm shorter. Besides being longer, the Tamron 15-30mm f2.8 VC USD also has a larger diameter of 98mm compared to the Canon RF 14-35mm F4L IS USM's 84mm diameter.
Below you can find a scaled side-by-side image of Canon RF 14-35mm F4L IS USM and Tamron 15-30mm f2.8 VC USD to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 14-35mm F4L IS USM and the Tamron 15-30mm f2.8 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 14-35mm F4L IS USM weighs 540g, which means it is 560g (50%) lighter than the Tamron 15-30mm f2.8 VC USD which has a weight of 1100g.
Lens Mounts
The Canon RF 14-35mm F4L IS USM has the Canon RF lens mount whereas the Tamron 15-30mm f2.8 VC USD has the Sony Alpha 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 Sony A99 II , Sony A68 and Sony A77 II for the Sony Alpha Mount.
Tamron 15-30mm f2.8 VC USD is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Canon RF 14-35mm F4L IS USM has a focal range of 14-35mm and
2.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
22.4 - 56mm .
On the other hand, the Tamron 15-30mm f2.8 VC USD has a focal range of 15-30mm and 2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 22.5 - 45mm .