Burke & James 5x7" threaded lens board to mount a Kodak Aero Ektar 7 inch 178mm f2.5 lens.
Won't fit the 4x5"and 8x10" models.
As an option, get a flexible rear cap for the lens.
3D printed. Very resistant PLA+ material, 100% Infill 140gr board, it won't break. The rear side of the adapter now gets painted with black matte paint.
Shipping via FedEx Priority (2 or 3 days shipping to the US)