Fast f/1.8 Aperture Ultra-Wide Angle. The Viltrox PFU RBMH 20mm f/1.8 ASPH for Sony E’s fast f/1.8 aperture enables great low-light performance, wide-angle images, and shallow depth of field, while its fourteen-blade diaphragm contributes to pleasing bokeh. The wide-angle perspective is popular for astrophotography and landscape, nature, interior, and architectural photography. Using an APS-C sensor camera? You’ll have a focal length equivalent to 30mm.

Advanced Optical Design. The 20mm f/1.8 ASPH’s nine-group/twelve-element design includes four extra-low dispersion elements, one double-sided aspherical element, and one highly transparent glass element, all of which ensure image sharpness and color accuracy while combating aberrations. A water-resistant, HD Nano multilayer coating on the individual elements minimizes lens flare and ghosting, helping to provide high contrast.

Manual-Focus Design. This is a manually focusing lens with a 148.5° focus throw. It lets you work with subjects as close as 9.8 inches away. Engraved focus-distance and depth-of-field scales help with prefocus and hyperfocal techniques.

High-Quality Build. This lens’s durable brass barrel contributes to its smooth operation, while the included lens hood helps keep flare at bay while protecting the bulbous front element.