Samyang 20mm f/1.8 ED AS UMC

Samyang 20mm f/1.8 ED AS UMC is a manual focus wide angle lens for full frame cameras.

Optical design

Has 7 aperture blades, mid-grade lenses usually have this amount of blades. Having rounded blades provides out of focus circle shape closer to a circle. Wide open, subjects located outside the depth of field are shown very blurred.

Physical characteristics

Weights 525 grams so plan ahead, carry only if really necessary. 114 mm long, requires consideration if you want to carry in the camera bag. With a lens filter diameter of 77 mm this lens deserves a good quality filter, this is commonly filter size, provides a range of filter options.