Samyang 20mm F1.8 is a Manual Focus (MF)
Wideangle Prime lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF mount cameras.
Lens Mount
Samyang 20mm F1.8 is compatible with cameras that have Pentax KAF lens mount.Some of the latest released cameras with Pentax KAF lens mount are
Pentax K-1 II,
Pentax KP and
Pentax K-70.
Sensor Coverage
Max sensor coverage of Samyang 20mm F1.8 is 35mm FF.
Focal Range
Samyang 20mm F1.8 has a fixed focal lenght of 20mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 20mm.
Aperture
Samyang 20mm F1.8 has a max aperture of F1.8 and a minimum aperture of F22.