The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 105mm F2.8 DG DN Macro and the Zeiss Touit 50mm f2.8 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 105mm F2.8 DG DN Macro is the longer of the two lenses at 134mm. The Zeiss Touit 50mm f2.8 with a length of 91mm, is 43mm shorter. Besides being longer, the Sigma 105mm F2.8 DG DN Macro also has a larger diameter of 74mm compared to the Zeiss Touit 50mm f2.8's 65mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Zeiss Touit 50mm f2.8 weighs 290g, 59% (425g) lighter than the Sigma 105mm F2.8 DG DN Macro's weight of 715g.
Filter Threads
The Sigma 105mm F2.8 DG DN Macro has a filter size of 62mm whereas the Zeiss Touit 50mm f2.8 has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Sigma 105mm F2.8 DG DN Macro:
And these are the 52mm filters that we recommend for the Zeiss Touit 50mm f2.8:
Lens Mounts
The Sigma 105mm F2.8 DG DN Macro has the Leica L lens mount whereas the Zeiss Touit 50mm f2.8 has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Sigma 105mm F2.8 DG DN Macro is also available in the Sony E mount.
Zeiss Touit 50mm f2.8 is also available in Fujifilm X mount.
Focal Range
Sigma 105mm F2.8 DG DN Macro is a prime lens with fixed focal lenght of 105mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
157.5mm.
On the other hand, the Zeiss Touit 50mm f2.8 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.
