Sony 20mm f/1.8 G Lens

The Sony 20mm f/1.8 G is a full-frame prime lens built for Sony E mount mirrorless cameras, offering a wide-angle perspective at a fixed 20mm focal length. With a maximum aperture of f/1.8, it delivers strong light-gathering capability that makes it well-suited for shooting in lower-light environments or whenever a shallow depth of field is desired at wider angles. The lens supports both autofocus and manual focus operation, giving photographers flexibility depending on the shooting situation.

At 373g, it sits in a relatively compact and manageable weight class for a full-frame wide-angle prime, making it a practical choice for photographers who prioritize portability without stepping down to a smaller sensor format. The 67mm filter thread is a common size, meaning compatible filters such as polarizers and NDs are widely available and reasonably priced. As a prime lens, it encourages intentional composition and delivers a consistent, fixed field of view that wide-angle enthusiasts will find useful across landscapes, architecture, environmental portraits, and astrophotography.

It is worth noting that the lens does not include optical image stabilization, so shooters working in low light will need to rely on in-body stabilization if available on their camera body.