Metal 25mm x .5 pitch lens lock ring (jam nut) to secure lenses with 25mm 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.
EL-Nikkor 300mm f5.6 Enlarging Lens for negative formats up to 10"x12".
EL-Nikkor 240mm f5.6 Enlarging Lens for negative formats up to 8"x10".
Rodagon-G 240mm f5.6 Enlarging Lens for 8"x10" Negatives from Rodenstock.
G-claron 240mm f9.0 Lens for graphic arts, macrophotography, field photography, and enlarging applications.
Rodagon 210mm f5.6 Enlarging Lens for 5"x7" Negatives from Rodenstock.
Beseler HD series 150mm f/5.6 Enlarging Lens for 4"x5" Negatives. Made in Germany by Rodenstock.
EL-Nikkor 180mm f5.6 Enlarging Lens with early style metal barrel design.
Rodagon 150mm f5.6 Enlarging Lens for 4"x5" Negatives from Rodenstock.
6-element Schneider Componon 150mm f5.6 enlarging lens for 4"x 5" format negatives
6-element Schneider Componon-S 150mm f5.6 enlarging lens for 4"x 5" format negatives
6-element Schneider Componon-S 150mm f5.6 enlarging lens for 4"x 5" format negatives