| Optics |
| Optical Formula |
9 elements in 8 groups |
| Aperture Range |
f/8 ~ f/45 |
| Number of Aperture Blades |
unknown |
| Minimum Focusing Distance |
8.0 m |
| Maximum Magnification |
0.23 X |
| Special Features |
extra-low dispersion element(s), internal focusing |
| Mechanics |
| Filter Diameter |
150 mm |
| Rear-Filter Diameter |
49 mm |
| Maximum Diameter |
170 mm |
| Length |
684 mm |
| Weight |
8580 g |
| Special Features |
tripod collar |
| Accessories |
| Cap |
soft leather tie-on cap, 171 mm |
| Fitting Hood(s) |
dedicated hood |
| Fitting Case(s) |
dedicated hard case: exact name unknown |
