The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14mm F1.4 DG DN and the Sigma 20mm F1.4 DG DN A 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. Sigma 14mm F1.4 DG DN is the longer of the two lenses at 150mm. The Sigma 20mm F1.4 DG DN A with a length of 111mm, is 39mm shorter. Besides being longer, the Sigma 14mm F1.4 DG DN also has a larger diameter of 101mm compared to the Sigma 20mm F1.4 DG DN A's 88mm diameter.
Below you can find a scaled side-by-side image of Sigma 14mm F1.4 DG DN and Sigma 20mm F1.4 DG DN A to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 14mm F1.4 DG DN and the Sigma 20mm F1.4 DG DN A Size and Weight 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 20mm F1.4 DG DN A weighs 635g, 45% (535g) lighter than the Sigma 14mm F1.4 DG DN's weight of 1170g.
Lens Mounts
The Sigma 14mm F1.4 DG DN has the Leica L lens mount whereas the Sigma 20mm F1.4 DG DN A has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Leica L mount.
Focal Range
Sigma 14mm F1.4 DG DN is a prime lens with fixed focal lenght of 14mm.
On the other hand, the Sigma 20mm F1.4 DG DN A is a prime lens with fixed focal lenght of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36mm .
