XR-1 (Formula A)
Speed increasing low contrast fine grain film developer
|Sodium Sulfite (anhydrous)||30||g|
|Distilled Water to make||1000||ml|
|Mixing Instructions: Add chemicals in specified sequence.|
|Dilution: Stock, 1+1 (Fast film), 1+3 (Medium speed film), 1+9 (Slow film), 1+2 (Kodak HIE), 1+7, 1+22 (Technical Pan)|
|Usage: Starting point dev time: 12-20 mins (86F/30C)|
NotesThis formula was obtained from the original patent document which lists two separate versions A and B. It is unclear as to which formula was used for the commercial version sold under the brand name Perfection XR-1.