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Endemann's Process Enlarging
Dr. Eder's Cerate Paste. |
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Pure white wax Dammar varnish Pure oil of turpentine |
... 100 grs. ... 40 mins. ... ico .. |
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Prepared and used as above described.
Endemann's Process. See Aniline Process.
Engraving Methods, Photographic. See Photogravure, Fish-Glue Process, Galvanography, Daguerreotype (etch-ing of), Obernetter's Process, Electrotyping, Leimtype,
WOODBURYTYPE, CHEMIGRAPHY, ASPHALT PROCESS, TYPES
(originating by photography), etc.
Engravings. Discoloured to bleach for copying. (See Bleaching.)
Enlarging is the operation of obtaining a larger image ot a negative or positive upon some sensitive surface. There are several methods of doing this, either by the use of daylight or artificial light, which will be severally described. But it is first necessary to make a few remarks upon the negative used for this purpose. Sharpness of focus is very necessary, for, supposing a quarter-plate negative taken in the ordinary way is to be enlarged - it may be considered that the discs of confusion appear as points of less than
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