Tele-Arton 5.5/270mm

 

OPTO-MECHANICAL DATA

(with lens focused at infinity)

Lens elements, Groups

5, 4

Shutter Size

I+1

Flange Focal Distance

152mm

Filter Mounting Thread

M 77 X 0.75

Weight (with shutter)

560g

Overall Length

97mm

 

IMAGE DATA

(with lens focused at infinity)

Recommended Format (negative) Size

90 X 120 mm

Image Circle Diameter at f/16

178mm

Angle of View at f/16

37 degrees

Lens Displacement at f/16 (vertical/horizontal)

 _

90 X 120 mm ; 83.5 X 114 mm

21.3/17.0mm

4 X 5" ; 94.4 X 120.3 mm

12.8/10.5mm

 

OPTICAL DATA

(with lens focused at infinity)

Effective Focal Length (F')

265mm

Back Focal Length (S'F')

126mm

Principal Point Separation (HH')

54mm