The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony CZ T* E 24mm F1.8 ZA and the Sigma 19mm F2.8 DN for their suitability to various photography scenarios:
Size and Weight Comparison
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 19mm F2.8 DN weighs 140g, 37% (85g) lighter than the Sony CZ T* E 24mm F1.8 ZA's weight of 225g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Wideangle Lenses in Sony E Mount for Size Comparison
Lens Mounts
Both the Sony CZ T* E 24mm F1.8 ZA and the Sigma 19mm F2.8 DN has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E10 II, Sony A6700 and Sony FX30.
Sigma 19mm F2.8 DN is also available in Micro Four Thirds mount.
Focal Range
Sony CZ T* E 24mm F1.8 ZA is a prime lens with fixed focal lenght of 24mm which has an effective (full-frame 35mm equivalent) focal range of
36mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 19mm F2.8 DN is a prime lens with fixed focal lenght of 19mm which has an effective (full-frame 35mm equivalent) focal range of 28.5mm when used on a APS-C / DX format camera.