The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan 17mm F4 TS and the Sigma 12mm f1.4 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. TTArtisan 17mm F4 TS is the longer of the two lenses at 113mm. The Sigma 12mm f1.4 with a length of 67mm, is 46mm shorter. Besides being longer, the TTArtisan 17mm F4 TS also has a larger diameter of 88mm compared to the Sigma 12mm f1.4's 69mm 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 250g, 76% (801g) lighter than the TTArtisan 17mm F4 TS's weight of 1051g.
Below you can find the dimension and weight table of the Perspective Control Prime Lenses in Canon RF Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon RF Mount for Size Comparison
Lens Mounts
Both the TTArtisan 17mm F4 TS and the Sigma 12mm f1.4 has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R6 V, Canon R6 III and Canon C50.
TTArtisan 17mm F4 TS is also available in the Sony E , Fujifilm G, Nikon Z and Leica L mounts.
Sigma 12mm f1.4 is also available in Sony E and Fujifilm X mounts.
Focal Range
TTArtisan 17mm F4 TS is a prime lens with fixed focal lenght of 17mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
25.5mm.
On the other hand, the Sigma 12mm f1.4 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a APS-C / DX format camera.
