The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 28-45mm F1.8 and the Canon RF 24-105mm F2.8 L 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. Canon RF 24-105mm F2.8 L is the longer of the two lenses at 199mm. The Sigma 28-45mm F1.8 with a length of 151mm, is 48mm shorter. Besides being longer, the Canon RF 24-105mm F2.8 L also has a larger diameter of 89mm compared to the Sigma 28-45mm F1.8's 88mm diameter.
Below you can find a scaled side-by-side image of Sigma 28-45mm F1.8 and Canon RF 24-105mm F2.8 L to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 28-45mm F1.8 and the Canon RF 24-105mm F2.8 L 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 28-45mm F1.8 weighs 960g, which means it is 370g (27%) lighter than the Canon RF 24-105mm F2.8 L which has a weight of 1330g.
Filter Threads
Both the Sigma 28-45mm F1.8 and the Canon RF 24-105mm F2.8 L have the same Filter thread size of 82mm .
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 28-45mm F1.8 has the Sony E lens mount whereas the Canon RF 24-105mm F2.8 L has the Canon RF lens mount . Some of the latest released cameras that are compatible with these mounts are Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount and Canon R6 V , Canon R6 III and Canon C50 for the Canon RF Mount.
Focal Range
Sigma 28-45mm F1.8 has a focal range of 28-45mm and
1.6X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 67.5mm .
On the other hand, the Canon RF 24-105mm F2.8 L has a focal range of 24-105mm and 4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 38.4 - 168mm .
