#reciprocityfailure

Reciprocity failure is when the reciprocity law fails due to very short or very long exposures. This is only a problem in film photography. The normal rules don’t apply if film is getting shot in low light situations as a longer length of exposure is needed to get a perfect exposure. This means if you half the f-stop, doubling the exposure time may not work and extra time would be needed.

@oakes_r and I sat still through a 2hr exposure to create these experimental pinhole photo portraits. We seemingly sit waist deep in a black mist tho it was actually daylight across the floor. #reciprocityfailure f#408 (at Long Island City)