Gehmann 501-A 23mm Lens Holder Adaptor Set

Gehmann 501-A 23mm Lens Holder Adaptor Set

• The Gehmann 501-A 23mm lens holder allows a prescription lens to be fitted eye-side to early Gehmann and all other manufacturers irises that don't have the ability to remove the front attachment thread 
• For the latest Gehmann irises that have the ability to remove the front attachment thread - use lens holder 501