Focal length 21 mm
Aperture range f/2.8 – f/22
Focusing range 0,25 m (9.84”) – ∞ 0,25 m (9.84”) – ∞
Number of elements/groups 11 / 9
Angular field, diag./horiz./vert. 91° / 81° / 59°
Coverage at close range 281 x 187 mm (11.06 x 7.36″)
Filter thread M52 x 0,75
Dimensions (with caps) 85 mm (3.35″)
Weight 394 g (0.87 lbs)
Camera mount E-Mount