The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 30mm F1.4 C and the Carl Zeiss Planar T1,4/50 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 30mm F1.4 C is the longer of the two lenses at 73mm. The Carl Zeiss Planar T1,4/50 with a length of 69mm, is 4mm shorter. On the other hand, the Carl Zeiss Planar T1,4/50 has a larger diameter of 66mm compared to the Sigma 30mm F1.4 C'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. Sigma 30mm F1.4 C weighs 265g, which means it is 85g (24%) lighter than the Carl Zeiss Planar T1,4/50 which has a weight of 350g.
Filter Threads
The Sigma 30mm F1.4 C has a filter size of 52mm whereas the Carl Zeiss Planar T1,4/50 has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the Sigma 30mm F1.4 C:
And these are the 58mm filters that we recommend for the Carl Zeiss Planar T1,4/50:
Lens Mounts
The Sigma 30mm F1.4 C has the Sony E lens mount whereas the Carl Zeiss Planar T1,4/50 has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 30mm F1.4 C is also available in the Micro Four Thirds , Fujifilm X, Nikon Z, Leica L and Canon RF mounts.
Carl Zeiss Planar T1,4/50 is also available in Pentax KAF and Nikon F (FX) mounts.
Focal Range
Sigma 30mm F1.4 C is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of
45mm when used on a APS-C / DX format camera.
On the other hand, the Carl Zeiss Planar T1,4/50 is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 80mm.
