OptiTek Nikon ProLock is a field proven robust and reliable Nikon F mounting system.
It will provide years of reliable service and professional results with Sony F3, F5, F55 Cine Alta cameras.
1. Positive locking to eliminate slop between the lens and the adapter
2. Aperture control for AF-S lenses built into the adapter.
The control is a traditional iris ring with standard pitch gear so motor can be used to control aperture remotely
3. Iris scale engraved on the control ring to read the lens aperture value for reference.
4.Iris scale is adjustable so it can be quickly precisely calibrated to the lens on the camera for even more precise aperture reference.
5. full compatibility with the AI, AI-S, AF-S lenses.
Click here for the Manual: Nikon ProLock manual