The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 20mm F2 DG DN C and the Sigma 65mm F2 DG 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. Sigma 65mm F2 DG DN is the longer of the two lenses at 75mm. The Sigma 20mm F2 DG DN C with a length of 72mm, is 3mm shorter. Besides being longer, the Sigma 65mm F2 DG DN also has a larger diameter of 72mm compared to the Sigma 20mm F2 DG DN C's 70mm diameter.
Below you can find a scaled side-by-side image of Sigma 20mm F2 DG DN C and Sigma 65mm F2 DG DN to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 20mm F2 DG DN C and the Sigma 65mm F2 DG DN 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 F2 DG DN C weighs 370g, which means it is 35g (8%) lighter than the Sigma 65mm F2 DG DN which has a weight of 405g.
Filter Threads
Both the Sigma 20mm F2 DG DN C and the Sigma 65mm F2 DG DN have the same Filter thread size of 62mm .
Below are links to the 62mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 20mm F2 DG DN C and the Sigma 65mm F2 DG DN has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Sigma 20mm F2 DG DN C is also available in the Leica L mount.
Sigma 65mm F2 DG DN is also available in Leica L mount.
Focal Range
Sigma 20mm F2 DG DN C 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
30mm .
On the other hand, the Sigma 65mm F2 DG DN is a prime lens with fixed focal lenght of 65mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 97.5mm .