Omega #421-010 Enlarger Lens Retaining Ring for lenses with 39mm "Leica" mounting thread.
Enlarging Lens Extension Tube for LPL, Omega/LPL, & Saunders/LPL 4x5 enlargers
Beseler #8095 Enlarger Lens Jam Nut (retaining ring) for lenses with 39mm "Leica" mounting thread.
Lens adapter allows enlarging lenses with 50mm thread to be installed on the Beseler #8225 3-lens turret.
Lens adapter provides a 6.5mm extension for mounting certain enlarging lenses with 39mm thread on the Beseler #8225 3-lens turret.
Lens adapter provides an 11.5mm extension for mounting certain enlarging lenses with 39mm thread on the Beseler #8225 3-lens turret.
32.5mm to 39mm Leica thread adapter for mounting enlarging lenses with 32.5mm thread on 39mm lensboards.
Metal 32.5mm x .5 pitch lens lock ring (jam nut) to secure lenses or #0 shutters with 32.5mm diameter mounting thread to unthreaded enlarger or camera lensboards.
25mm to 39mm Leica thread adapter for mounting Schneider lenses with 25mm thread on 39mm lensboards.