– 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 on the rear. Besides that, looks…
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 magnifying glasses : One easy way…
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.
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…
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:
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…
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…
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…
Excellent history of photography. Organised by the French historian Michel Frizot, the book features in its almost 800 pages the contribution of many other authors. It is, in fact, a compilation of 41 independent essays depicting a panorama about the relation of image making and society transformations since the appearance of the first photographic processes….
Simply a must for anyone researching about antique lenses, its construction, variations, characteristics, producers, genealogies and dates among other information. An incredible work, result of may years of work from authot Matthew Wilkinson, the Lens Vade Mecum is a posthumous publication finished by family and friends based on originals and notes. The electronic version can…
A photographic lens’ focal length has no direct relationship to the angle of view, or determining whether it is a wide-angle or telephoto lens. Read this article and understand what focal length, angle of view and image circle really are.
To put an end to the wild times of Flash Powder, magnesium ribbons and sheets, one had the ingenious idea to put the magnesium inside a glass bulb and light it up with an electric spark. It avoids the smoke and the handling of raw chemicals. But as the quantity of heat released in the…