Omega #421-924 blank lens plate with 1" extended or recessed cup for mounting certain enlarging lenses on the #421-900 Single Lens Mount for D5500 and ProLab II enlargers. For specific applications for this lens plate, please refer to our D5500 / ProLab II Lens Mount Reference Chart.
Note: These lensboards are blank and will need to be machined to fit your lens. Purchase it blank or inquire if you would like us to customize it for you.