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Changes in the film processor can result in large differences in the calibration curves. The RIT113 Automated 21 Point
*compensates for the causes of processor variation:
Temperature changes
Changes in chemicals
Oxidation of some of the chemicals
Number of films run per day
Replenishment rate of chemicals
Type of developer
Type of film - EDR2 is more sensitive to processor variations than XV

*Within reasonable operational limitations. Uses SensiX model sensitometer.
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