According to D.A. Spencer[1] the correct name of the discoverer of the Sabattier effect is indeed A. Sabatier, but in all professional and academic literature the photographic effect which is named after him is spelled with double "t". Jack Klaber 10:48, 6 January 2019 (UTC)

References

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  1. ^ Spencer, D.A. (1973). "S". The Focal Dictionary of Photographic Technologies (1 ed.). London&New York: Focal Press. p. 539. ISBN 0240507479.