R Lens Board - Pentax 645 bayonet ground glass It includes a gear-driven function

It includes a gear-driven function carrier with friction control to set user preference for the geared movement

Front and rear manual swing

5 cm extension bracket with 20 cm monorail and monorail stop

Pico system lens board for Mamiya 645 lenses and Phase One blue and silver ring lenses with electronic interface for aperture control

Designed for use with 4x5 film or 4X5 Graflok roll film backs

R Lens Board - Pentax 645 bayonet ground glass It includes a gear-driven functionFor Pentax 645 FA lenses Bayonet adapter lens board for Rm3di, RL3di, or Factum cameras only Requires 20. 5 extension when used with a digital back Extension not required when using GFX 50R as the capture device For manual aperture control lenses only Mounts to the R Line camera TUM helical, red dot to helical white dot SKU: 017245