NiSi Sunstar 9mm f/2.8 Sunstar ASPH 9mm

Its 10-blade straight aperture renders distinct 10-point sun stars from specular highlights at any setting, a unique optical signature for an ultrawide 9mm f/2.8 prime. The all-metal, weather-sealed build incorporates two aspherical and two ED elements for high sharpness in a compact 364g manual focus design. This lens is best for landscape and architecture photographers who prioritize creative in-camera starburst effects over autofocus convenience.