Used Heiland TRD 2 Densitometer
Heiland TRD 2 Densitometer in Excellent Condition. Includes instruction manual and calibration strips for transmission and reflection. See the article by Phil Davis on the Heiland TRD 2 Densitometer from Photo Techniques Magazine on the View Camera Store's Facebook Page: https://www.facebook.com/ViewCameraStore/photos/pcb.3283736565029405/3283733458363049/
This would be a great densitometer for any photographer wanting to do BTZS film and paper calibrations.