Methods of Determining the Speed of Photographic Exposers: Principles Involved in the ...
Methods of Determining the Speed of Photographic Exposers: Principles Involved in the ...
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In our eReader you can find the full English version of the book. Read Methods of Determining the Speed of Photographic Exposers: Principles Involved in the ... Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Methods of Determining the Speed of Photographic Exposers: Principles Involved in the ...
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But if one is to make a specialty of instantaneous pictures, one lens may be devoted to that work, and a lens-tube constructed for the purpose. The attach- ment of an exposer properly constructed will not interfere with long exposures. If placed between the lenses, the shutter will be nearer the point of support for the camera, and consequently the jar caused by the exposure will be less. All portions of the plate are exposed at the same iustant, and for an equal length of time ; hence there is... no flare spot produced from this cause. From the above it will be seen that the place presenting the most advantages for the shutter is be- tween the lenses.
(2.) Construction of the Exposer. — The exposure is made either by raising a flap, or by causing a single or double slot to pass by the lens. The object of raising a flap is to expose the top of the picture less than the bottom ; but sometimes one does not want to expose the top less than the bottom, and there is no more reason for doing so in instantaneous work than with long exposures.
What to read after Methods of Determining the Speed of Photographic Exposers: Principles Involved in the ...?
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To quickly assess the difficulty of the text, read a short excerpt:
But if one is to make a specialty of instantaneous pictures, one lens may be devoted to that work, and a lens-tube constructed for the purpose. The attach- ment of an exposer properly constructed will not interfere with long exposures. If placed between the lenses, the shutter will be nearer the point of support for the camera, and consequently the jar caused by the exposure will be less. All portions of the plate are exposed at the same iustant, and for an equal length of time ; hence there is... no flare spot produced from this cause. From the above it will be seen that the place presenting the most advantages for the shutter is be- tween the lenses.
(2.) Construction of the Exposer. — The exposure is made either by raising a flap, or by causing a single or double slot to pass by the lens. The object of raising a flap is to expose the top of the picture less than the bottom ; but sometimes one does not want to expose the top less than the bottom, and there is no more reason for doing so in instantaneous work than with long exposures.
What to read after Methods of Determining the Speed of Photographic Exposers: Principles Involved in the ...?
You can find similar books in the "Read Also" column, or choose other free books by William Henry Pickering to read onlineMoreLess
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