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 Canon RF 85mm F1.2L USM DS 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 85mm F1.2L USM DS is the longer of the two lenses at 117mm. The Canon RF 45mm F1.2 with a length of 75mm, is 42mm shorter. Besides being longer, the Canon RF 85mm F1.2L USM DS also has a larger diameter of 103mm compared to the Canon RF 45mm F1.2's 78mm diameter.
Below you can find a scaled side-by-side image of Canon RF 45mm F1.2 and Canon RF 85mm F1.2L USM DS to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 45mm F1.2 and the Canon RF 85mm F1.2L USM DS 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 849g (71%) lighter than the Canon RF 85mm F1.2L USM DS which has a weight of 1195g.
Filter Threads
The Canon RF 45mm F1.2 has a filter size of 67mm whereas the Canon RF 85mm F1.2L USM DS has a 82mm 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 82mm filters that we recommend for the Canon RF 85mm F1.2L USM DS:
Lens Mounts
Both the Canon RF 45mm F1.2 and the Canon RF 85mm F1.2L USM DS has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R6 V , Canon R6 III and Canon C50 .
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 Canon RF 85mm F1.2L USM DS is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 136mm .