The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 35mm F1.8 IS STM Macro and the Sigma 30mm F1.4 C 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 30mm F1.4 C is the longer of the two lenses at 73mm. The Canon RF 35mm F1.8 IS STM Macro with a length of 63mm, is 10mm shorter. On the other hand, the Canon RF 35mm F1.8 IS STM Macro has a larger diameter of 74mm compared to the Sigma 30mm F1.4 C's 65mm diameter.
Below you can find a scaled side-by-side image of Canon RF 35mm F1.8 IS STM Macro and Sigma 30mm F1.4 C to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 35mm F1.8 IS STM Macro and the Sigma 30mm F1.4 C 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. Sigma 30mm F1.4 C weighs 265g, 13% (40g) lighter than the Canon RF 35mm F1.8 IS STM Macro's weight of 305g.
Filter Threads
Both the Canon RF 35mm F1.8 IS STM Macro and the Sigma 30mm F1.4 C have the same Filter thread size of 52mm .
Below are links to the 52mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Canon RF 35mm F1.8 IS STM Macro has the Canon RF lens mount whereas the Sigma 30mm F1.4 C 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 ZV-E10 II , Sony A6700 and Sony FX30 for the Sony E Mount.
Sigma 30mm F1.4 C is also available in Micro Four Thirds , Fujifilm X , Nikon Z , Leica L and Canon RF mounts.
Focal Range
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 .
On the other hand, the Sigma 30mm F1.4 C is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 45mm when used on a APS-C / DX format camera.