Lens Elements, Groups |
4, 2 |
Filter Mounting Thread |
M 55 X 0.75 or *M 49 X 0.75 |
Max. f/# |
32 |
Push-On Filter Size |
57mm or *51mm |
Max. Outer Diameter |
57mm or *62mm |
Weight |
385g or *590g |
Overall Length |
140mm or *128mm |
Recommended Format (negative) Size |
23.5 X 23.5 mm or *24 X 36 mm |
Effective Focal Length (F') |
203mm or *201mm |
Back Focal Length (S'F') |
52.2mm or *52.9mm |
Principal Point Separation (HH') |
98mm or *91mm |
Shortest Image Distance (S'O') |
2.5m or *2m |