The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 35mm F2 DG DN and the Sony E 30mm F3.5 Macro for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sigma 35mm F2 DG DN is the longer of the two lenses at 65mm. The Sony E 30mm F3.5 Macro with a length of 56mm is 9mm shorter. Besides being longer, the Sigma 35mm F2 DG DN also has a larger diameter of 70mm compared to Sony E 30mm F3.5 Macro's 62mm 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 E 30mm F3.5 Macro weighs 138g, 57% (187g) lighter than the Sigma 35mm F2 DG DN's weight of 325g.
Both Sigma 35mm F2 DG DN and Sony E 30mm F3.5 Macro has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7R V, Sony FX30 and Sony A7 IV.
Sigma 35mm F2 DG DN is also available in Leica L mount.
Sigma 35mm F2 DG DN is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 52.5mm.
Sony E 30mm F3.5 Macro is a prime lens with fixed focal lenght of 30mm which has a 35mm equivalent focal range of 52.5mm when used on a APS-C / DX format camera.