The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 35mm F1.8 Di VC USD and the Sony DT 35mm 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 35mm F1.8 Di VC USD is the longer of the two lenses at 81mm. The Sony DT 35mm F1.8 SAM with a length of 52mm is 29mm shorter. Besides being longer, the Tamron 35mm F1.8 Di VC USD also has a larger diameter of 80mm compared to Sony DT 35mm 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 35mm F1.8 SAM weighs 170g, 62% (280g) lighter than the Tamron 35mm F1.8 Di VC USD's weight of 450g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Sony Alpha Mount for size comparison purposes.
Wideangle Prime Lenses in Sony Alpha Mount for Size Comparison
Lens Mounts
Both Tamron 35mm F1.8 Di VC USD and Sony DT 35mm 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 A99 II, Sony A68 and Sony A77 II.
Tamron 35mm F1.8 Di VC USD is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of 35mm and the fastest aperture of F1.8.