The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pergear 50mm F1.2 APS-C and the Canon RF 45mm F1.2 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 45mm F1.2 is the longer of the two lenses at 75mm. The Pergear 50mm F1.2 APS-C with a length of 61mm, is 14mm shorter. Besides being longer, the Canon RF 45mm F1.2 also has a larger diameter of 78mm compared to the Pergear 50mm F1.2 APS-C's 59mm 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 45mm F1.2 weighs 346g, 3% (14g) lighter than the Pergear 50mm F1.2 APS-C's weight of 360g.
Filter Threads
The Pergear 50mm F1.2 APS-C has a filter size of 55mm whereas the Canon RF 45mm F1.2 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Pergear 50mm F1.2 APS-C:
And these are the 67mm filters that we recommend for the Canon RF 45mm F1.2:
Lens Mounts
The Pergear 50mm F1.2 APS-C has the Sony E lens mount whereas the Canon RF 45mm F1.2 has the Canon RF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Canon R6 V, Canon R6 III and Canon C50 for the Canon RF Mount.
Pergear 50mm F1.2 APS-C is also available in the Fujifilm X , Nikon Z, Canon RF and Micro Four Thirds mounts.
Focal Range
Pergear 50mm F1.2 APS-C is a prime lens with fixed focal lenght of 50mm which has an effective (full-frame 35mm equivalent) focal range of
75mm when used on a APS-C / DX format camera.
On the other hand, the 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.