Lensboards for durst enlargers
Available with 32mm x 0.75 for Zeiss S-Orthoplanar 60
and 53mm x 0.75 for EL-Nikkor 150mm 5.6
Available with all thread sizes up to 72mm x 1
130 x 130mm lensboards for Ferd. Homrich & Sohn enlargers and lensboards for Liesegang 4×5″ enlargers
can be made for the lens thread size you want to use on it, and with the threaded ring for the lens.