rehalogenizev.

1889 R. Meldola Chem. Photogr. vi. 222 The gelatine becomes more and more brominated till it begins to rehalogenize the reduction product.

1905 Amer. Amateur Photographer 17 171/1 In our process we simply rehalogenise the image without adding any metal whatever, and then redevelop.

1969 M. J. Langford Advanced Photogr. xi. 235 This bleach ‘re-halogenises’ the silver image—the ferricyanide oxidises the silver which reacts with the bromide and reverts to a silver halide.

?1995 H. I. Bjelkhagen Silver-Halide Recording Materials (ed. 2) vi. 263 In the second step the developed silver grains are rehalogenized with a bleach solution.

1889 R. Meldola Chem. Photogr. 271 The rehalogenizing action of the soluble iodide was explained as being the result of the oxidation of this salt by atmospheric oxygen.

1916 Camera Feb. 92 The use of retarding, reducing and rehalogenizing agents in modifying and saving over-exposed, contrasty or halated negatives is but little appreciated.

1940 F. J. Mortimer Wall's Dict. Photogr. (ed. 15) 549 Rehalogenising, the re-conversion of the silver image in a finished print or negative into silver chloride, bromide, or iodide.

1995 New Straits (Malaysia) Times (Nexis) 16 Oct. 13 After the negative is developed, it is immersed in a bleach that removes all the silver image by a ‘rehalogenising’ that turns it back into its unexposed state.