Densonorm 21i Combination Densitometer / Sensitometer

21 step sensitometer and densitometer with measuring arm and scanner for motorized measurement of 21 step film strips in one unit. Automatic calculation of speed index, contrast index (according to DIN or ANSI), LE, LK, rel. speed and aver. gradient.Memory function stores density values for up to 3 film strips. RS-232 interface for connection to a PC or compat. printer i-CAL: high precision sensitometer calibrated per DIN 6868/55.  

i-CAL-LAB: especially designed for professional laboratory use. Densitometer with highest precision and calibration of 10 points of the measurement range. Motorized measurement of 21-steps with density control.

The Densonorm  21i has a measuring range: 0 ≤ D ≤4.5. The required measuring range for all medical films including mammography films according to the DIN standards (German national standards – in many cases the German DIN is the defacto international standard.) for densitometer was a range up to D 4.0. (The Densonorm reads well above this requirement.) The relavent steps for measuring in quality control are the steps with a density of approx. 1.20 for relative Speed and density 2.40 for gradiation.