Flat Lens Disc with 50mm hole to attach enlarging lenses with 50mm mounting thread to the appropriate lens mounts on certain Omega D, E, and F series enlargers.
For use with the lens mounts for the following:
Note: These lens discs are not threaded - a 50mm retaining ring or lens flange is required to attach the lens to the disc. If you require a retaining ring or lens flange for your lens, it may be purchased separately.