BetterPhoto Q&A
Category: Photo Exposure Troubleshooting

Photography Question 

BetterPhoto Member
 

receprocity?


I'm taking night shots on B with tripod and cable release of a building, for example, and exposure time has been no longer than five seconds on any shot. When the slide film comes back there is a faint, but noticeable upsidedown image of the building. Does this have something to do with receprocity and what does that mean exactly? Thanks.


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October 26, 2002

 

Jon Close
  Reciprocity error involves shifts in the film's color balance, and non-linear exposure times. It would not put ghost images on the film. I'd be interested in seeing your photo, but my guess is that the reflection is coming from a filter, shooting through a window, or lens flare.


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October 26, 2002

 
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