An ultra-wide field of view along with a sleek design, the Sony E-mount Laowa 11mm f/4.5 FF RL from Venus Optics is a unique wide-angle prime with rectilinear rendering that is ideal for interior, arc espandi...hitecture, nature, and landscape applications. The huge 126° angle of view is aided by an advanced optical design, which includes aspherical high refractive index, and low dispersion elements, to realize well-corrected, sharp, and color-accurate imagery. The lens has a manual focus design and permits working with subjects as close as 7.5" away and its built-in petal-shaped hood helps to block stray light from causing unwanted lens flare. Ultra-wide prime is designed for full-frame Sony E-mount mirrorless cameras but can also be used with APS-C models where it provides a 16.5mm equivalent focal length. Two aspherical elements and one ultra-high refractive index glass element help to control distortion and spherical aberrations for improved sharpness and accurate rendering. Three extra-low dispersion elements are used to reduce color fringing and chromatic aberrations in order to produce high clarity and color accuracy. Impressively wide 126° angle of view pairs with a rectilinear design, which renders subjects with minimal distortion in order to suit landscape and architectural applications. Manual focusing design is benefitted by an integrated focusing tab for intuitive handling and a minimum focusing distance of 7.5" suits working with close-up subjects. Built-in petal-shaped lens hood helps to prevent stray light from causing lens flare and also offers some physical protection to the lens's front element. Front of the lens is threaded to accept optional 62mm filters. The lens is also compatible with an optional, dedicated 100mm filter holder. Five-blade diaphragm produces distinct 10-point sun stars and specular highlights when stopped-down and photographing point light sources.