ARRI Enso 21mm T2.1 Prime Lens

ARRI Ensō Primes 21 mm
Optical Parameters
Focal length  21 mm
T-stop T2.1
Close focus 0.22 m / 8.5″
Length 117 mm / 4.6″
Weight 1.4 kg / 3.1 lb
Front diameter 95 mm
Magnification ratio at MOD 1:4
Entrance pupil position 
(related to image plane, in direction to object plane)
131.6 mm / 5.2″
Angle of view H-V-D for LF Open Gate 83,2° / 63,3° / 94,4°
Physical Dimensions
Lens barrel Aluminum
Focus barrel rotation 318°
Iris barrel rotation 48°
Gear Module 0.8
Interfaces
Lens mount LPL
Lens data system LDS-2 or Cooke/i
Electronic magnetic rear filter interface yes