The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 15-30mm F4.5-6.3 IS and the Tamron SP 15-30mm F2.8 Di VC USD G2 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 SP 15-30mm F2.8 Di VC USD G2 is the longer of the two lenses at 145mm. The Canon RF 15-30mm F4.5-6.3 IS with a length of 88mm, is 57mm shorter. Besides being longer, the Tamron SP 15-30mm F2.8 Di VC USD G2 also has a larger diameter of 98mm compared to the Canon RF 15-30mm F4.5-6.3 IS's 77mm diameter.
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 15-30mm F4.5-6.3 IS weighs 390g, which means it is 720g (64%) lighter than the Tamron SP 15-30mm F2.8 Di VC USD G2 which has a weight of 1110g.
Lens Mounts
The Canon RF 15-30mm F4.5-6.3 IS has the Canon RF lens mount whereas the Tamron SP 15-30mm F2.8 Di VC USD G2 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 SP 15-30mm F2.8 Di VC USD G2 is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
15-30mm but while Canon RF 15-30mm F4.5-6.3 IS has the fastest aperture of
F4.5–6.3, the Tamron SP 15-30mm F2.8 Di VC USD G2's widest aperture value is
F2.8.