Practical Factors Influencing the Signal-to-Noise Ratio of Photographic Images

Paper presented at a Symposium on “Factors Limiting Photographic Performance”, organised by the Science Committee of The Royal Photographic Society on 11 - 13 December 1968 in London.

Abstract

When the photographic process is used at the limits of detection, as in many scientific applications, it is important to optimize the signal-to-noise ratio of the photographic image. This may involve using exposing and processing techniques other than those which are customary for more general conditions of use.

The results presented here are concerned with the influence of development on equivalent quantum efficiency. It is concluded that in general detection can be improved by using slightly shorter development times than are customary for more conventional purposes.

Notes

Paper presented at a Symposium on “Factors Limiting Photographic Performance”, organised by the Science Committee of The Royal Photographic Society on 11 - 13 December 1968 in London.