The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Laowa 85mm f5.6 2x Macro and the Sigma 105mm F1.4 DG HSM 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 105mm F1.4 DG HSM is the longer of the two lenses at 132mm. The Laowa 85mm f5.6 2x Macro with a length of 81mm is 51mm shorter. Besides being longer, the Sigma 105mm F1.4 DG HSM also has a larger diameter of 116mm compared to Laowa 85mm f5.6 2x Macro's 53mm 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. Laowa 85mm f5.6 2x Macro weighs 291g, which means it is 1354g (82%) lighter than the Sigma 105mm F1.4 DG HSM which has a weight of 1645g.
Both Laowa 85mm f5.6 2x Macro and Sigma 105mm F1.4 DG HSM 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.
Laowa 85mm f5.6 2x Macro is also available in Leica M , Canon RF, Nikon Z and Leica L mounts.
Sigma 105mm F1.4 DG HSM is also available in Canon EF , Nikon F (FX) and Sigma SA mounts.
Laowa 85mm f5.6 2x Macro is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 127.5mm.
Sigma 105mm F1.4 DG HSM is a prime lens with fixed focal lenght of 105mm which has an effective (full-frame 35mm equivalent) focal range of 157.5mm when used on a 35mm FF format camera.