Measurement tools for film photographers
Midtone Lab builds apps for photographers who work by measurement: step wedge densitometry and correction curves for platinum/palladium, kallitype and other alternative printing processes on the Mac, and Zone System metering in the field on iPhone.
StepWedgeDensitone
Read scanned step-wedge prints and generate Photoshop correction curves for alt-process printing.
AltProcessDensitone
Correct alt-process curve drift from any real print — no step wedge required.
YsEVMeter
A three-zone spot meter in your pocket — highlight, midtone and shadow, read straight off the scene.
Alt-Process Workflow Guides
Scanning a Print for Measurement
How to scan or copy-shot an alt-process print so the numbers mean something — RAW, a straight curve, and every automatic adjustment off.