The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Yongnuo 11mm F1.8S E and the Sony FE 20mm F1.8 G 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 FE 20mm F1.8 G is the longer of the two lenses at 85mm. The Yongnuo 11mm F1.8S E with a length of 69mm, is 16mm shorter. Besides being longer, the Sony FE 20mm F1.8 G also has a larger diameter of 74mm compared to the Yongnuo 11mm F1.8S E's 66mm diameter.
Below you can find a scaled side-by-side image of Yongnuo 11mm F1.8S E and Sony FE 20mm F1.8 G to get a better idea of how their sizes compare in real life.
Comparison image of the Yongnuo 11mm F1.8S E and the Sony FE 20mm F1.8 G 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. Yongnuo 11mm F1.8S E weighs 260g, which means it is 113g (30%) lighter than the Sony FE 20mm F1.8 G which has a weight of 373g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Ultra-Wideangle Lenses in Sony E Mount for Size Comparison
Filter Threads
The Yongnuo 11mm F1.8S E has a filter size of 58mm whereas the Sony FE 20mm F1.8 G has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Yongnuo 11mm F1.8S E:
And these are the 67mm filters that we recommend for the Sony FE 20mm F1.8 G:
Lens Mounts
Both the Yongnuo 11mm F1.8S E and the Sony FE 20mm F1.8 G 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 .
Focal Range
Yongnuo 11mm F1.8S E is a prime lens with fixed focal lenght of 11mm which has an effective (full-frame 35mm equivalent) focal range of
16.5mm when used on a APS-C / DX format camera.
On the other hand, the Sony FE 20mm F1.8 G 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 .