Tele-Arton 4.0/90mm

 

OPTO-MECHANICAL DATA

(with lens focused at infinity)

Lens Elements, Groups

5, 4

Filter Mounting Thread

M 29.5 X 0.4

Max. f/#

22

Push-On Filter Size

41mm

Max. Outer Diameter

50mm

Weight

_

Overall Length

37mm

 

IMAGE DATA

(with lens focused at infinity)

Recommended Format (negative) Size

28.1 X 28.6 mm

 

OPTICAL DATA

(with lens focused at infinity)

Effective Focal Length (F')

86.8m

Back Focal Length (S'F')

40mm

Principal Point Separation (HH')

13.9mm

Shortest Image Distance (S'O')

1.9m