Adapter Knob for Beseler 23C and 45M Flexible Focus Extension Kit

Our Flexible Focus Extension shafts can be shared between multiple enlargers by simply fitting an adapter knob to each of the enlargers. The extension shaft can then be attached or removed instantly. This adapter knob fits the 5/16" diameter focus shaft on Beseler 23C and 45M series enlargers. Knobs to fit Omega enlargers are also available - see "Related Products" below.