Diagonal or minimum image circle for a given film/sensor format
Use this calculator to find out what is the minimum image circle your lens must provide in order to cover a certain film format.
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Photo-Technique, Fundamentals & Equipment | Walls, H.J.
Although published in 1954, this is not a very hard to find book for online purchase. Organised by H.J.Walls and edited by Focal Press it is one of the few books, intended for amateurs, that talks more in depth about optical principles, the nature of light, sensitometry and characteristics of lenses and photographic equipment in general….
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Lens/subject/format – an online simulator
Lens/subject/format – an online simulator How it works: You enter the focal length of your lens, film or digital sensor dimensions and the approximate size of your subject. The simulator shows in value and graphically the following corresponding information: The calculation is made in order to fill the frame proportionally. If subject proportions do not correspond to…
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History of Photography | Josef Maria Eder
Book published in 1905 is an essential source for studying the History of Photography seeing it inserted and as a continuation of the studies on light, photo-sensitive reactions and formation of images through lenses. Phenomena observed and studied since ancient Greece and deepened particularly after the Renaissance. But 700 of its 900 pages are devoted…
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Orthoskop | Voigtlander, the second Petzval
Orthoskop | Voigtlander, the second Petzval – Orthoskop | Voigtlander | 1857/58 – This is the oldest lens in my collection. It came from an antiques shop in Santos – São Paulo, in a shoe box, wrapped in newspaper, with a Dagor 240 mm, a Tessar 300mm and some other non important photographic items. Unfortunately two elements are missing…
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Ground glass loupe, easy and useful
Ground glass loupe, easy and useful Quite often we want to check focus more carefully in a view camera . To do that, the obvious idea, goes about using something that enlarges the projected image allowing for more precision than with bare eyes to inspect image’s sharpness. Three problems generally arise when using common loupes and…
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Immateriality of digital image
A digital file is like a score for an image to be automatically played on a printer. Otherwise, a digital print is as material as any silver gelatin picture.
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Photography, a concise history | Ian Jeffrey
Being a relatively small book, 245 pages, it couldn’t really try to be a comprehensive approach to the vast subject that it addresses. From there the name “a concise history”. But what is interesting in it is that once admitted that condition, there is a insightful history of ideas in photography with some very well…
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The negative | Anselm Adams
This is a classic and very useful work from Anselm Adams (1902 – 1984), north american photographer, in which he explains his Zone System. It is a working procedure that starts by evaluating the film exposure considering:
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Photographic Lenses – How to choose and how to use | John A. Hodges
Book published in 1894. Divided into three sections: We can perceive there a very pragmatic approach, but it does not loosen with scientific accuracy. It is interesting for those who like studying history of image making and also for those considering or already using lenses from the 19th century. That is becoming very attractive if…
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The optics of Photography and Photographic Lenses | J. Traill Taylor
Very good book about photographic lenses. Published in 1904, third edition, introduces the nature of light and goes directly to the issue of a photographic image. Explains the problems of aberration, angle of view, aperture and focus among other key concepts. It is a pragmatic text and relates designs with field of application like landscapes…
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Zeiss Compendium East & West: 1940-1972 | Charles M. Barringer e Marc James Small
Zeiss Ikon was a photographic camera producer, result of a merge of three other important makers. It had a difficult to overestimate role in the history of photography. This book is about its last decades and analyses how its incredibly diversified offer, in concepts and formats, ended up being unbearable and in conflict with profitability. It…
