The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 30mm F2.8 DN 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 30mm F2.8 DN weighs 135g, which means it is 5g (3%) lighter than the Sigma 19mm F2.8 DN which has a weight of 140g.
Lens Mounts
The Sigma 30mm F2.8 DN has the Sony E lens mount whereas the Sigma 19mm F2.8 DN has the Micro Four Thirds 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 , and for the Micro Four Thirds Mount.
Sigma 30mm F2.8 DN is also available in the Micro Four Thirds mount.
Sigma 19mm F2.8 DN is also available in Sony E mount.
Focal Range
Sigma 30mm F2.8 DN 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 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.
