The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 45mm F1.2 and the Sigma 50mm F1.4 DG DN Art 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. Sigma 50mm F1.4 DG DN Art is the longer of the two lenses at 110mm. The Canon RF 45mm F1.2 with a length of 75mm, is 35mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 78mm.
Below you can find a scaled side-by-side image of Canon RF 45mm F1.2 and Sigma 50mm F1.4 DG DN Art to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 45mm F1.2 and the Sigma 50mm F1.4 DG DN Art 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 45mm F1.2 weighs 346g, which means it is 323g (48%) lighter than the Sigma 50mm F1.4 DG DN Art which has a weight of 669g.
Filter Threads
The Canon RF 45mm F1.2 has a filter size of 67mm whereas the Sigma 50mm F1.4 DG DN Art has a 72mm 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 Canon RF 45mm F1.2:
And these are the 72mm filters that we recommend for the Sigma 50mm F1.4 DG DN Art:
Lens Mounts
The Canon RF 45mm F1.2 has the Canon RF lens mount whereas the Sigma 50mm F1.4 DG DN Art has the Leica L 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 Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
Sony E mount.
Focal Range
Canon RF 45mm F1.2 is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
72mm .
On the other hand, the Sigma 50mm F1.4 DG DN Art is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm .
