Sony E 20mm f/2.8 - Sony E-mount

The Sony E 20mm f/2.8 is an ultra-compact 'pancake' prime lens designed for APS-C E-mount mirrorless cameras. Providing a 30mm equivalent focal length, it features three aspherical elements to manage aberrations and distortion. Its slim profile makes it well-suited for street photography and travel, offering a wider perspective than standard kit lenses while maintaining a lightweight footprint for everyday use. When purchasing a used example, inspect the rear element and mounting plate for signs of frequent lens changes. The AF motor is generally reliable, but should be tested for smooth operation. SDS technicians check the lens for internal dust and ensure the slim manual focus ring rotates without resistance. Common wear is typically found on the exterior finish of the lens barrel due to its portable nature.