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 Sony DT 50mm F1.8 SAM for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Samyang 50mm F1.4 AS UMC is the longer of the two lenses at 75mm. The Sony DT 50mm F1.8 SAM with a length of 45mm is 30mm shorter. Besides being longer, the Samyang 50mm F1.4 AS UMC also has a larger diameter of 82mm compared to Sony DT 50mm F1.8 SAM's 70mm 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. Sony DT 50mm F1.8 SAM weighs 170g, 68% (365g) lighter than the Samyang 50mm F1.4 AS UMC's weight of 535g.
Below you can find the dimension and weight table of the 'Standard Prime Lenses in Sony Alpha Mount for size comparison purposes.
Standard Prime Lenses in Sony Alpha Mount for Size Comparison
Both Samyang 50mm F1.4 AS UMC and Sony DT 50mm F1.8 SAM has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are , and .
Samyang 50mm F1.4 AS UMC is also available in Canon EF , Nikon F (FX), Pentax KAF and Sony E mounts.
Both lenses have the same focal range of 50mm but while Samyang 50mm F1.4 AS UMC has the fastest aperture of F1.4, the Sony DT 50mm F1.8 SAM's widest aperture value is F1.8.