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 Samyang 50mm F1.4 AS UMC for their suitability to various photography scenarios:
Size and Weight Comparison Below you can find a scaled side-by-side image of Canon RF 45mm F1.2 and Samyang 50mm F1.4 AS UMC to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 45mm F1.2 and the Samyang 50mm F1.4 AS UMC 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 189g (35%) lighter than the Samyang 50mm F1.4 AS UMC which has a weight of 535g.
Filter Threads
The Canon RF 45mm F1.2 has a filter size of 67mm whereas the Samyang 50mm F1.4 AS UMC has a 77mm 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 77mm filters that we recommend for the Samyang 50mm F1.4 AS UMC:
Lens Mounts
The Canon RF 45mm F1.2 has the Canon RF lens mount whereas the Samyang 50mm F1.4 AS UMC has the Sony E 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 FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Canon EF , Nikon F (FX) , Pentax KAF and Sony Alpha mounts.
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 Samyang 50mm F1.4 AS UMC 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 .
