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Author: Thomas Bolas
Publisher:
ISBN:
Category : Photographic lenses
Languages : en
Pages : 208
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Book Description
Author: Thomas Bolas
Publisher:
ISBN:
Category : Photographic lenses
Languages : en
Pages : 208
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Book Description
Author: Thomas BOLAS (and BROWN (George Edward) F.I.C.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 176
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Book Description
Author: Thomas Bolas
Publisher: Forgotten Books
ISBN: 9780282247904
Category : Photography
Languages : en
Pages : 200
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Book Description
Excerpt from The Lens: A Practical Guide to the Choice, Use, and Testing of Photographic Objectives Thanks are here tendered to several persons and firms for the use Of blocks, viz., to R. J. Beck, Ltd. (for fig. 10) J. H. Dallmeyer, Ltd. (fig. Ross, Ltd. (figs. 73, 74, and Carl Zeiss (fig. W. Thomas (figs. 114 and and Miss Evelyn Boden (fig. Professor F. J. Allen has permitted the reprint of the notes on angle of view, and has contributed some others, and Mrs. Catharine Weed Ward has supplied the illustrations on pp. 109 and 110. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Thomas Bolas
Publisher: Franklin Classics
ISBN: 9780341763956
Category :
Languages : en
Pages : 196
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Thomas Bolas
Publisher: Nabu Press
ISBN: 9781294736363
Category :
Languages : en
Pages : 198
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Book Description
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Author: Thomas Bolas
Publisher: Rarebooksclub.com
ISBN: 9781230064048
Category :
Languages : en
Pages : 48
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Book Description
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 edition. Excerpt: ...of the complete doublet, while the front combination has a focal length of about twice that of the complete doublet. This lens works at /6 and the size which is best adapted for general work on a plate 8 x 6i (10'7 ins. focal length) will cover a 15 x 12 plate if a stop of /16 is used, and this with fairly equal illumination. The number of anastigmatic doublets capable of division into two good landscape lenses is now so great that even the names cannot be mentioned. The above are, however, representative examples. 16 The pass test for an Anastigmatic or Stigmatic Doublet.--The long column of Times leader having been set up as already directed Fio. 102. and to the same standard of reduction (p. 84), it should be possible to find a focal plane in which the whole is distinctly legible at the same time, the full aperture of the lens being used. If the lens has a greater rapidity than /6 a little leniency may be allowed. For the whole-plate lens (about 11 ins. focal length) the racking in for curvature of the field should not exceed one tenth of an inch, and the astigmatic difference should not be more than one twentieth of an inch, the test being made as on the margin of a whole plate, as directed (p. 84) for the case of a rapid symmetrical. In the case of lenses of longer or shorter focal length proportionate errors may be allowed. The test for achromatism is made as already directed in the case of the symmetrical. The anastigmat should pass the test absolutely, but care must be taken not to misjudge by reason of want of register between dark slide and focussing frame. A very firm and well made camera is required for this test. 17 Combining Lenses: further Notes.--The lenses described above may be combined to form doublets, and when...
Author: Thos Bolas
Publisher: Trieste Publishing
ISBN: 9780649629671
Category :
Languages : en
Pages : 204
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Book Description
Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.
Author: Alan Greene
Publisher: CRC Press
ISBN: 1136092706
Category : Photography
Languages : en
Pages : 240
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Book Description
Primitive Photography considers the hand-made photographic process in its entirety, showing the reader how to make box-cameras, lenses, paper negatives and salt prints, using inexpensive tools and materials found in most hardware and art-supply stores. Step-by-step procedures are presented alongside theoretical explanations and historical background. Streamlined calotype procedures are demonstrated, featuring different paper negative processes and overlooked, developing-out printing methods. Primitive Photography combines the simplicity of pinhole photography, the handmade quality of alternative processes, and the precision of large-format. For those seeking alternatives to commercially prepared material as well as digital photography, it provides the instructions for creating the entire photographic process from the ground up. Given its scope and treatment of the photographic process as a whole, this may be the first book of its kind to appear in over a century.
Author: Henry Goodridge Deller
Publisher:
ISBN:
Category : Photographic lenses
Languages : en
Pages : 120
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Author: C. Winthrope Somerville
Publisher:
ISBN:
Category : Bromides
Languages : en
Pages : 94
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Book Description
