Photograph Instruction Text: A Systematic Course and Working Guide in All the Processes which Ordinarily Take Up the Attention of Camera Workers |
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acid alkali alum amount appearance Aristo Platino blue borax bottle bromide Bromide paper carbonate cheese cloth chrome alum clear color contrast copying correct exposure dark room daylight density detail devel diaphragm directions edges eikonogen emulsion enlarged exposed face favor ferrotype film filter fixer fixing bath flash powder flat focus lens folding camera fresh developer gas mantle gloss gold toning ground glass highlights hydrometer hypo illumination inches isochromatic plates lantern slide lenses less lines litmus paper long focus mat surface method metol minutes necessary negative old developer ounces overexposed overexposure photographic picture pinhole plate holder platinotype platinum toning portrait position powder print permanent purpose pyro reflecting requires retouching rinse ruby screen short exposure short focus side soak soft effects spots squeeged stain stock solution strength subdued tion tissue toning bath tray underexposure unexposed varnish window yellow
Popular passages
Page 91 - ... water to which a few drops of sulphuric acid have been added.
Page 188 - Photographic instruction text; a systematic course and working guide in all the processes which ordinarily take up the attention of camera workers.
Page iv - Jtre the most perfect color sensitive plates in the market MADE IN THREE GRADES OF SPEED Slow, Medium and Instantaneous FOR SALE BY ALL PHOTO SUPPLY DEALERS * JW nntiffictured by G.
Page 72 - ... image points superimposed. Say that by the use of a diaphragm both lose an image point; the ratio becomes one to nine, an evident increase of contrast. It is not fair to suppose that a shadow will always lose equally with...
Page 5 - It is intended to acquaint one with practice and reasons in a logical order and to give a systematic knowledge which will enable an old or new worker to work intelligently...
Page 57 - Although bromide is not recommended in the instructions, a few drops of a ten per cent. solution to the ounce of developer is advisable.
Page 72 - ... one part of it from another. Contrast results from a decrease of detail. When one part is left vacant by loss of detail, its vacancy stands out in contrast to the imagery of an adjoining part. Or, from another standpoint, the relative intensities of light falling upon certain shadows and...
Page 72 - The decreased illumination with smaller opening is obvious enough. The decrease in detail occurs because some of the partial images which make up the full image are taken away. Do not confuse definition with detail. Detail pictures the parts of a view, while definition distinguishes one part of it from another. Contrast results from a decrease...