The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 50mm F1.4 AS UMC and the Tokina Opera 50mm F1.4 for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Tokina Opera 50mm F1.4 is the longer of the two lenses at 108mm. The Samyang 50mm F1.4 AS UMC with a length of 75mm is 33mm shorter. On the other hand, the Samyang 50mm F1.4 AS UMC has a larger diameter of 82mm compared to Tokina Opera 50mm F1.4's 80mm diameter.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Samyang 50mm F1.4 AS UMC weighs 535g, which means it is 415g (43%) lighter than the Tokina Opera 50mm F1.4 which has a weight of 950g.
Below you can find the dimension and weight table of the 'Standard Prime Lenses in Canon EF Mount for size comparison purposes.
Standard Prime Lenses in Canon EF Mount for Size Comparison
Both Samyang 50mm F1.4 AS UMC and Tokina Opera 50mm F1.4 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.
Samyang 50mm F1.4 AS UMC is also available in Nikon F (FX) , Pentax KAF, Sony Alpha and Sony E mounts.
Tokina Opera 50mm F1.4 is also available in Nikon F (FX) mount.
Both lenses have the same focal range of 50mm and the fastest aperture of F1.4.