Photo Vocab #5: Reciprocity Effect


Photo Vocab #5: Reciprocity Effect

Reciprocity effect refers to the relationship between exposure time and light intensity on a photograph. The idea, and fact of the matter is, that an exposure is the fruit of both factors (exposure time and light intensity), not either individually.

A failure of reciprocity occurs when an exposure is made outside of the range of a film stocks intended exposure time (i.e. the exposure time is too long or too short). What results is either a shift in the color balance, inaccurate contrast and/or a loss of the effective film speed or ISO.

1 Comment

  1. After going over a number of the blog articles on your web site, I really like your technique of blogging. I saved it to my bookmark site list and will be checking back in the near future. Please check out my web site as well and tell me how you feel.|

Comments are closed.