4x5 back for gralflex 3x4 RB

thingiverse

Human: The Graflex RB's ground glass must be removed and flipped upside down before being reinstalled, making room for focussing adjustments. Using the screws that held the original in place, the new frame is secured. To operate this setup, a ground glass holder from a Graflex camera is necessary. The frame to hold the ground glass can be adjusted using spacers, ensuring optimal focussing. Cutting paper to size would work as a shim; photocopier paper, at 0.1mm thick, may need multiple sheets stacked together to achieve the precise distance.