The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Rokinon T-S 24mm f3.5 and the Canon 24mm f2.8 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. Rokinon T-S 24mm f3.5 is the longer of the two lenses at 112mm. The Canon 24mm f2.8 with a length of 49mm, is 63mm shorter. Besides being longer, the Rokinon T-S 24mm f3.5 also has a larger diameter of 86mm compared to the Canon 24mm f2.8'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 weighs 270g, 60% (410g) lighter than the Rokinon T-S 24mm f3.5's weight of 680g.
Filter Threads
The Rokinon T-S 24mm f3.5 has a filter size of 82mm whereas the Canon 24mm f2.8 has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Rokinon T-S 24mm f3.5:
And these are the 58mm filters that we recommend for the Canon 24mm f2.8:
Lens Mounts
Both the Rokinon T-S 24mm f3.5 and the Canon 24mm f2.8 has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Rokinon T-S 24mm f3.5 is also available in Nikon F (FX) and Sony Alpha mounts.
Focal Range
Both lenses have the same focal range of
24mm but while Rokinon T-S 24mm f3.5 has the fastest aperture of
F3.5, the Canon 24mm f2.8's widest aperture value is
F2.8.