Super-Angulon R 4/21mm

 

OPTO-MECHANICAL DATA

(with lens focused at infinity)

Lens Elements, Groups

10, 8

Filter Mounting Thread

M 72 X 0.75

Max. f/#

22

Push-On Filter Size

75mm

Max. Outer Diameter

78mm

Weight

350g

Overall Length

55mm

 

IMAGE DATA

(with lens focused at infinity)

Recommended Format (negative) Size

24 X 36 mm

 

OPTICAL DATA

(with lens focused at infinity)

Effective Focal Length (F')

21.6mm

Back Focal Length (S'F')

37.6mm

Principal Point Separation (HH')

33mm

Shortest Image Distance (S'O')

0.2m