The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 24mm F2.8 STM and the Samyang T-S 24mm f3.5 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 T-S 24mm f3.5 is the longer of the two lenses at 112mm. The Canon 24mm F2.8 STM with a length of 23mm, is 89mm shorter. Besides being longer, the Samyang T-S 24mm f3.5 also has a larger diameter of 86mm compared to the Canon 24mm F2.8 STM's 68mm 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 24mm F2.8 STM weighs 125g, which means it is 555g (81%) lighter than the Samyang T-S 24mm f3.5 which has a weight of 680g.
Filter Threads
The Canon 24mm F2.8 STM has a filter size of 52mm whereas the Samyang T-S 24mm f3.5 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 52mm filters that we recommend you to consider for the Canon 24mm F2.8 STM:
And these are the 82mm filters that we recommend for the Samyang T-S 24mm f3.5:
Lens Mounts
The Canon 24mm F2.8 STM has the Canon EF-S lens mount whereas the Samyang T-S 24mm f3.5 has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount and Canon 1D X III, Canon 6D MII and Canon 5D MIV for the Canon EF Mount.
Samyang T-S 24mm f3.5 is also available in Nikon F (FX) , Pentax KAF, Sony Alpha and Sony E mounts.
Focal Range
Both lenses have the same focal range of
24mm but while Canon 24mm F2.8 STM has the fastest aperture of
F2.8, the Samyang T-S 24mm f3.5's widest aperture value is
F3.5.