The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 50mm F1.8 STM and the Canon RF 35mm F1.8 IS STM Macro 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 35mm F1.8 IS STM Macro is the longer of the two lenses at 63mm. The Canon RF 50mm F1.8 STM with a length of 41mm, is 22mm shorter. Besides being longer, the Canon RF 35mm F1.8 IS STM Macro also has a larger diameter of 74mm compared to the Canon RF 50mm F1.8 STM's 69mm diameter.
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Below you can find a scaled side-by-side image of Canon RF 50mm F1.8 STM and Canon RF 35mm F1.8 IS STM Macro to get a better idea of how their sizes compare in real life.
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 50mm F1.8 STM weighs 160g, which means it is 145g (47%) lighter than the Canon RF 35mm F1.8 IS STM Macro which has a weight of 305g.
Filter Threads
The Canon RF 50mm F1.8 STM has a filter size of 43mm whereas the Canon RF 35mm F1.8 IS STM Macro has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 43mm filters that we recommend you to consider for the Canon RF 50mm F1.8 STM:
And these are the 52mm filters that we recommend for the Canon RF 35mm F1.8 IS STM Macro:
Lens Mounts
Both the Canon RF 50mm F1.8 STM and the Canon RF 35mm F1.8 IS STM Macro has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R100, Canon R8 and Canon R50.
Focal Range
Canon RF 50mm F1.8 STM is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
80mm.
On the other hand, the Canon RF 35mm F1.8 IS STM Macro is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 56mm.