ZEISS Standard Speeds T2.1
| Focal Length | Aperture | Close Focus | Front Diameter | Weight (lbs) |
|---|---|---|---|---|
| 180mm | T3.0 | 5' | 80mm | 3 |
| 10mm | T2.1 | 14" | 156mm | 6.6 |
| 12mm | T2.1 | 10" | 135mm | 2.5 |
| 14mm | T2.0 | 9" | 114mm | 3.2 |
| 16mm | T2.1 | 10" (CF modified) | 80mm | 1.2 |
| 20mm | T2.1 | 8" | 80mm | 2 |
| 24mm | T2.1 | 14" (CF modified) | 80mm | 1 |
| 28mm | T2.1 | 11" | 80mm | 2.25 |
| 32mm | T2.1 | 2' (CF modified) | 80mm | 1 |
| 40mm | T2.1 | 16" | 80mm | 1 |
| 50mm | T2.1 | 1' 6" | 80mm | 1 |
| 60mm Macro | T2.9 | 11" | 80mm | 1.75 |
| 85mm | T2.1 | 3' | 80mm | 1.5 |
| 100mm | T2.1 | 3' 4" | 80mm | 1.6 |
| 135mm | T2.1 | 5' | 80mm | 2.25 |