April 2013
Beginner
240 pages
7h 38m
English
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The Lens
This chapter addresses the construction of lenses for use with the film-holders and cameras presented in Chapters 1 and 2. It begins with a survey of essential lens configurations with related subjects like focal length, angle of view, f-stop, and aberrations being considered. Following this is a list of tools and materials needed to construct lenses, leading to the procedural steps for constructing four types of mid-nineteenth-century lenses: the singlet, or landscape lens; the symmetrical duplet, or periscopic lens; the asymmetrical duplet, or portrait lens; and the symmetrical triplet.1 Brief historical summaries for each lens are also provided.
The lenses presented in this chapter have been chosen because they are easy to construct ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.