Retention ring with M42x1 male thread to press a lens aperture pin

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This retaining ring can be installed at the bottom of M42x1 helicoid thread to press a lens aperture pin if the lens has automatic mode only.
As you can see on the sample photos, installing the ring allows stepping the lens down.
WARNING: it is not suitable for infinity providing adapters since you will not be able to screw the lens fully, and infinity focus will be lost.
| Adapter Front Side | 16-SP |
| Adapter Rear Side | Leica L mount |
| Material | Aluminium |
| Manufacturer | RafCamera |
| Advantages |
|
Details
This retaining ring can be installed at the bottom of M42x1 helicoid thread to press a lens aperture pin if the lens has automatic mode only.
As you can see on the sample photos, installing the ring allows stepping the lens down.
WARNING: it is not suitable for infinity providing adapters since you will not be able to screw the lens fully, and infinity focus will be lost.
More Information
| Adapter Front Side | 16-SP |
| Adapter Rear Side | Leica L mount |
| Material | Aluminium |
| Manufacturer | RafCamera |
| Advantages |
|
Questions