Lensboards for Beseler enlargers
For Beseler enlargers with 4 x 4″ (101.6 x 101.6mm) square lensboards

Square Lensboards with 4 x 4″ (101.6 x 101.6mm), made in aluminium and painted matte black.
With threaded retaining ring included to mount the lens on the lensboard.
Available for lenses with mount thread sizes from 25mm x 0.5 to 55mm x 0.75 thread.
Can also be made for lenses with other thread sizes.
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 55mm x 0.75 thread + retaining ring for Schneider APO-Componon HM 150mm 4.0, for Schneider Componon 210mm 5.6 for Schneider Componon-S 180mm 5.6, Componon-S 210mm 5.6 | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 53mm x 0.75 thread + retaining ring for EL-Nikkor 150mm 5.6 | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 50mm x 0.75 thread + retaining ring for APO-EL-Nikkor 170mm 5.6 for some EL-Nikkor 135mm 5.6 A (newer model), EL-Nikkor 150mm 5.6 A (newer model) with 50mm diameter thread for Schneider APO-Componon HM 120mm 5.6, for Schneider Componon-S 135mm 5.6, Componon-S 150mm 5.6 for Schneider Componon 135mm 5.6, Componon 150mm 5.6, Componon 180mm 5.6 for Rodenstock Rodagon 150mm 5.6, Rodagon 180mm 5.6 | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 45mm x 0.5 thread + retaining ring for some EL-Nikkor 135mm 5.6 that have 45mm diameter thread | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 42mm x 0.75 thread + retaining ring for some Rodenstock Rodagon 150mm that have 42mm diameter thread for some Schneider Componon-S 135mm 5.6, Componon-S 150mm 5.6 that have 42mm diameter thread | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 40.5mm thread + retaining ring for Wollensak enlarger lenses with 40.5mm diameter thread | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with M39 LTM thread + retaining ring for EL-Nikkor, Componar, Componon, Rogonar, Rodagon and other lenses with M39 Leica thread | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 39mm x 0.75 thread + retaining ring (not Leica thread) for vintage Schneider Comparon 135mm 4.5, vintage Componon 150mm 5.6 that have a thinner 39mm thread for some Componon-S 180mm 5.6, Componon-S 210 5.6 that have a 39mm diameter thread | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 32.5mm x 0.5 thread + retaining ring for EL-Nikkor, Componar, Componon, Rogonar, Rodagon and other lenses with 32.5mm diameter thread | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 32mm x 0.75 thread + retaining ring for Zeiss S-Orthoplanar 60 | EUR 30.00 | |
Square lensboard 4 x 4″ for Beseler enlargers for lenses with 25mm x 0.5 thread + retaining ring for Schneider Componar, Componon and other enlarger lenses with 25mm diameter thread | EUR 30.00 |
Contact for a custom made lensboard for Beseler enlarger for different lens thread size