The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 12mm f1.4 and the Carl Zeiss Touit 2.8/12 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. Carl Zeiss Touit 2.8/12 is the longer of the two lenses at 86mm. The Sigma 12mm f1.4 with a length of 70mm, is 16mm shorter. Besides being longer, the Carl Zeiss Touit 2.8/12 also has a larger diameter of 82mm compared to the Sigma 12mm f1.4's 68mm 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 12mm f1.4 weighs 235g, which means it is 35g (12%) lighter than the Carl Zeiss Touit 2.8/12 which has a weight of 270g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Fujifilm X Mount for size comparison purposes.
Ultra-Wideangle Lenses in Fujifilm X Mount for Size Comparison
Filter Threads
The Sigma 12mm f1.4 has a filter size of 62mm whereas the Carl Zeiss Touit 2.8/12 has a 67mm 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 12mm f1.4:
And these are the 67mm filters that we recommend for the Carl Zeiss Touit 2.8/12:
Lens Mounts
Both the Sigma 12mm f1.4 and the Carl Zeiss Touit 2.8/12 has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5.
Sigma 12mm f1.4 is also available in the Sony E and Canon RF mounts.
Carl Zeiss Touit 2.8/12 is also available in Sony E mount.
Focal Range
Both lenses have the same focal range of
12mm but while Sigma 12mm f1.4 has the fastest aperture of
F1.4, the Carl Zeiss Touit 2.8/12's widest aperture value is
F2.8.
