Lens elements, Groups |
4, 2 |
Shutter Size |
_ |
Flange Focal Distance |
540mm |
Filter Mounting Thread |
M 127 X 1 |
Weight (with shutter) |
_ |
Overall Length |
272mm |
Recommended Format (negative) Size |
180 X 240 mm |
Image Circle Diameter at f/16 |
312mm |
Angle of View at f/16 |
18 degrees |
Effective Focal Length (F') |
970mm |
Back Focal Length (S'F') |
523mm |
Principal Point Separation (HH') |
142mm |