| 释义 |
Sabatier Photogr.|sabatje|
Also (erron. but more commonly) Sabattier.
The name of Armand Sabatier (1834–1910), French physician and scientist, used attrib. and in the possessive to designate a process and an effect developed by him, as † Sabatier's amphi-positive process, the process of image-reversal giving rise to the Sabatier effect; Sabatier effect, partial or complete reversal of an image on film or paper, resulting from exposure to unsafe light after partial development. Cf. solarization 1, pseudo-solarization.
1894E. L. Wilson Cyclopædic Photogr. 329/1 Sabatier's Amphi-Positive Process. The peculiarity of this process consists in the pictures being the result of a superposition, or entangling of two images, one negative, the other positive. 1930tr. L. P. Clerc's Photogr. xvi. 138/1 A similar phenomenon is observed when white light is momentarily admitted to the room while the normal image is still weak. (Sabatier effect.) 1939M. Natkin Fascinating Fakes in Photogr. 58 Solarisation, sometimes called Sabatier effect, has been known for a very long time. 1956[see solarization 1 a]. 1970C. B. Neblette Fund. Photogr. v. 52 If a photographic material is exposed, developed, washed but not fixed and then exposed to diffused light and again developed, a positive image or a combination of a positive and a negative image is obtained... This is known as the Sabattier effect (Sabatier, 1850). 1970M. J. Sethna Photography xii. 180 Actually producing the Sabatier effect is not an easy matter. 1976K. I. & R. E. Jacobson Imaging Syst. v. 105 Although the Sabattier effect has been ascribed to the screening effect of the negative image produced by the first exposure and development on the printing by the second exposure onto the underlying emulsion, desensitization by the products of development is a more likely explanation. |