D2/3 Filter Holder for D2, D4, E, F, B5, B6, B7, B8 Enlargers This Omega Bellow the Lens Filter Holder allows you to use either variable contrast filters, or a red safety filter, on your Omega B series enlargers. Simply swing the filter in place and you can position your black & white paper under a safe working light.
Glassless. Special spring-loaded repid-shift design with bright top surface and non-reflective bottom. Stainless steel film guide pins ensure easy film advance, location, and installation. (Also Fits B600, B66 & B22 Enlargers)