The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony E 10-20mm F4 PZ G and the Sigma 19mm F2.8 EX DN 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. Sony E 10-20mm F4 PZ G is the longer of the two lenses at 55mm. The Sigma 19mm F2.8 EX DN with a length of 46mm, is 9mm shorter. Besides being longer, the Sony E 10-20mm F4 PZ G also has a larger diameter of 70mm compared to the Sigma 19mm F2.8 EX DN's 61mm 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 19mm F2.8 EX DN weighs 140g, 21% (38g) lighter than the Sony E 10-20mm F4 PZ G's weight of 178g.
Filter Threads
The Sony E 10-20mm F4 PZ G has a filter size of 62mm whereas the Sigma 19mm F2.8 EX DN has a 46mm 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 Sony E 10-20mm F4 PZ G:
And these are the 46mm filters that we recommend for the Sigma 19mm F2.8 EX DN:
Lens Mounts
Both the Sony E 10-20mm F4 PZ G and the Sigma 19mm F2.8 EX 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 EX DN is also available in Micro Four Thirds mount.
Focal Range
Sony E 10-20mm F4 PZ G has a focal range of 10-20mm and
2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
15-30mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 19mm F2.8 EX 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.
