Reciprocity Failure Calculator

Calculate reciprocity failure compensation for long exposures with film.

Length of time in the specified unit.
seconds
Enter the film type (1=standard, 2=low reciprocity, 3=high reciprocity) value for this calculation.
type

Results

Corrected Exposure Time:
Calculated time or duration.
-seconds
Formatted Time:
Calculated time or duration.
-
Stops of Compensation:
Calculated stops of compensation based on your inputs.
-stops
Reference: Industry Standards.