If it’s not on the list, then Generic color-negative film is a safe option.

Input the exposure time that the Light Meter gave you for a scene.

The calculator provides the adjusted exposure time accounting for reciprocity failure.

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Theory of Reciprocity Failure

Film’s sensitivity decreases during long exposures, requiring longer exposure times than metered.
Each film has unique reciprocity characteristics.
Failure typically becomes significant at exposures longer than 1 second.
Color shifts may also occur with color films during long exposures.

Tips:

Always use reciprocity correction for exposures longer than 1 second.
Bracket your corrected exposures ±1 stop when shooting critical work.
Keep notes on which film stocks perform best for your typical long exposure work.
For exposures over 10 minutes, consider the impact of changing light conditions during the exposure.