Xenar 6.1/210mm

 

OPTO-MECHANICAL DATA

(with lens focused at infinity)

Lens elements, Groups

4, 3

Shutter Size

_

Flange Focal Distance

206mm

Filter Mounting Thread

M 46 X 0.75

Weight (with shutter)

375g

Overall Length

49.7mm

 

IMAGE DATA

(with lens focused at infinity)

Recommended Format (negative) Size

130 X 180 mm

Image Circle Diameter at f/22

249mm

Angle of View at f/22

60 degrees

Lens Displacement at f/22 (vertical/horizontal)

 _

180 X 240 mm ; 171 X 231 mm

44/35mm

8 X 10" ; 194 X 245 mm

26/21mm

 

OPTICAL DATA

(with lens focused at infinity)

Effective Focal Length (F')

215mm

Back Focal Length (S'F')

188.8mm

Principal Point Separation (HH')

1.2mm