The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 60mm f2 II LD IF Macro 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.Tamron 60mm f2 II LD IF Macro is the longer of the two lenses at 80mm. The Sony DT 50mm F1.8 SAM with a length of 45mm is 35mm shorter. Besides being longer, the Tamron 60mm f2 II LD IF Macro also has a larger diameter of 73mm 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, 57% (230g) lighter than the Tamron 60mm f2 II LD IF Macro's weight of 400g.
Lens Mounts
Both Tamron 60mm f2 II LD IF Macro 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 Sony A68, Sony A77 II and Sony A58.
Tamron 60mm f2 II LD IF Macro is also available in Canon EF and Nikon F (DX) mounts.
Focal Range
Tamron 60mm f2 II LD IF Macro is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of 90mm when used on a APS-C / DX format camera. Sony DT 50mm F1.8 SAM is a prime lens with fixed focal lenght of 50mm which has an effective (full-frame 35mm equivalent) focal range of 75mm when used on a APS-C / DX format camera.