Does anyone know how fast the light meter on an om1n fails if you're using an active mr9 cell adapter (with an sr43) ? I've done 4 rolls in 4 days and just noticed that my meter is 2 stops under. I'm not sure if I've just pulled all four rolls 2 stops. (3 are c41 I'll be sending off for processing). I usually turn my meter off overnight, and the camera is in my closed bag when not in use.

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