WHAT IS THE DARKROOM AUTOMATION PRECISION EXPOSURE METER?
The meter measures both print exposure and negative density. The meter measures the light falling on the easel to 1/100th of a stop, corresponding to measuring negative density to 0.003 OD. It uses a 2mm square Silicon-Blue photodiode for measurement and shows the results on a 4-digit 1/2″ high red LED display. The meter is calibrated so a full scale reading of 9.99 indicates a light intensity producing maximum black on Ilford MGIV #2 in a one second exposure. A reading of 0.00 indicates a light intensity producing maximum black in a 950 second exposure. There are two pushbuttons: one for on-off and one for making Delta’ measurements. The meter turns itself of after 5 minutes of inactivity. It is powered by two AA batteries, and with the meter’s ultra-low power technology the batteries will last over 3 years in average use. The meter’s unique delta mode finds the right grade of paper, determines dodge and burn exposures and reads negative density by measuring the light difference betwe
