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 Samyang 35mm F1.4 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. Samyang 35mm F1.4 is the longer of the two lenses at 112mm. The Canon RF 35mm F1.8 IS STM Macro with a length of 63mm, is 49mm shorter. On the other hand, the Canon RF 35mm F1.8 IS STM Macro has a larger diameter of 74mm compared to the Samyang 35mm F1.4's 63mm 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 35mm F1.8 IS STM Macro weighs 305g, which means it is 355g (53%) lighter than the Samyang 35mm F1.4 which has a weight of 660g.
Filter Threads
The Canon RF 35mm F1.8 IS STM Macro has a filter size of 52mm whereas the Samyang 35mm F1.4 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 52mm filters that we recommend you to consider for the Canon RF 35mm F1.8 IS STM Macro:
And these are the 77mm filters that we recommend for the Samyang 35mm F1.4:
Lens Mounts
The Canon RF 35mm F1.8 IS STM Macro has the Canon RF lens mount whereas the Samyang 35mm F1.4 has the Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Canon R100, Canon R8 and Canon R50 for the Canon RF Mount and Olympus E-5, Olympus E-600 and Olympus E-620 for the Four Thirds Mount.
Samyang 35mm F1.4 is also available in Canon EF , Nikon F (FX), Pentax KAF, Sony Alpha, Sony E and Samsung NX mounts.
Focal Range
Both lenses have the same focal range of
35mm but while Canon RF 35mm F1.8 IS STM Macro has the fastest aperture of
F1.8, the Samyang 35mm F1.4's widest aperture value is
F1.4.