The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 20mm F1.8 G and the Lensbaby Sol 22 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 Lensbaby Sol 22 with a length of 38mm, is 47mm shorter. Besides being longer, the Sony FE 20mm F1.8 G also has a larger diameter of 74mm compared to the Lensbaby Sol 22'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. Lensbaby Sol 22 weighs 144g, 61% (229g) lighter than the Sony FE 20mm F1.8 G's weight of 373g.
Lens Mounts
The Sony FE 20mm F1.8 G has the Sony E lens mount whereas the Lensbaby Sol 22 has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
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.
On the other hand, the Lensbaby Sol 22 is a prime lens with fixed focal lenght of 22mm which has an effective (full-frame 35mm equivalent) focal range of 44mm when used on a APS-C / DX format camera.