| Available Mounts | Compur 1 | Prontor Prof. 1 | Copal 1 | BK 1 |
|
Lens Elements, Groups |
6, 4 |
6, 4 |
6, 4 |
6, 4 |
| Flange Focal Distance | 200.9mm | 199.5mm | 201.0mm | 200.9mm |
|
Accessory Thread |
M 77 X 0.75 |
M 77 X 0.75 |
M 77 X 0.75 | M 77 X 0.75 |
|
Mounting Thread |
M 39 X 0.75 |
M 39 X 0.75 |
M 39 X 0.75 | M 39 X 0.75 |
|
Max. f/# |
64 |
64 |
64 | 64 |
|
Weight |
590g |
570g |
550g | 480g |
|
Overall Length |
73mm |
73mm |
73mm | 73mm |
Recommended Format Size |
130 X 180 mm |
130 X 180 mm |
130 X
180 mm (5 X 7") |
130 X 180 mm |
Image Circle Diameter at f/22 |
294mm | 294mm | 294mm | 294mm |
Angle of View at f/22 |
70 degrees | 70 degrees | 70 degrees | 70 degrees |
Lens Displacement at f/22 (vertical/horizontal) |
||||
| 90 X 120 mm ; 83 X 114 mm | 71/62mm | 71/62mm | 71/62mm | 71/62mm |
| 4 X 5" ; 96 X 120 mm | 63/56mm | 63/56mm | 63/56mm | 63/56mm |
| 5 X 7" ; 121 X 170 mm | 33/26mm | 33/26mm | 33/26mm | 33/26mm |
| 130 X 180 mm ; 122 X 171 mm | 32/25mm | 32/25mm | 32/25mm | 32/25mm |
Effective Focal Length (F') |
209.9mm |
209.9mm |
209.9mm | 209.9mm |
Back Focal Length (S'F') |
174.7mm |
174.7mm |
174.7mm | 174.7mm |
Principal Point Separation (HH') |
-4.0mm |
-4.0mm |
-4.0mm | -4.0mm |