"The Comparator 100 #6252 is an inexpensive meter that provides accurate exposure times for enlarging your own prints.
To use the Comparator, simply place it on the baseboard, null the LED's with the dial and read the correct exposure time. Integrated measurements are made by using a diffuser (supplied with the unit) under the lens, or spot readings can be used due to the small sensor diameter. Calibration knobs and the on/off switch are located out of the way to avoid unwanted changes. The light sensitive cell is located near the edge to reach each corner of the enlargement.
Description Exposure meter
Power Battery operated (9V) not included
Indications LED indicators to allow for adjustments
Dimensions 5½ x 3 x 1"" LWH (14 x 7½ x 2½cm)
"
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