Geared ring for Konvas lenses. Unfortunately, different lenses have different diameter of original focusing ring, so it is necessary to adapt the geared rings to them. We made three different rings for now.
Each ring has 6 holes for stoppers, and comes with 4 stoppers. 3 holes located with 120 degrees step, and 4 holes has 90 degrees step.
Here is list of lenses we had to test the gears with. But it seems that there were no strict standards on the focusing ring diameters. So, please measure diameter of your lens' focusing ring before ordering.
| Gear size | Suitable lenses |
Inner diameter: 83mm Outer diameter: 97mm | OKS6-75-1 (one of variations) |
Inner diameter: 85mm Outer diameter: 97mm | OKS3-221 OKS6-75-1 (one of variations) OKS2-100-2 |
Inner diameter: 98mm Outer diameter: 117mm | OKS1-18-1 (1978, 1980) OKS11-35-1 (1980, 1988, 1989) OKS1-50-1 (1979) OKS1-50-6 (1977, 1979, 1987) OKS6-75-1 (1979, 1981) OKS1-80-1 (1974) |
This product was added to our catalog on Saturday 15 April, 2006.