DTP 644 transmission

High precision transmission densitometer with built in light source and a long throat of more than 20 cm.

Enables large-format film measurements. The lighted area around the reading aperture makes film positioning easier. The interchangeable measuring apertures (2.5 mm and 1 mm) complete the features of the DTP 642. Density measurements up to over 6.00D and precise dot area measurements (0 - 100%).