Description: The PhotoNotes.org dictionary is the most accurate, useful and comprehensive reference source offering contemporary photographic terms I found on the Net so far. On several occasions the descriptions go beyond mere definitions: they include the theoretical background of the term or summarize historical concepts in photography. Where suitable they give practical examples as a way of explanation. The author NK Guy took care that digital and film photography found equal coverage in his work.
To make it short: A great dictionary for everyone interested in photography from the beginner to the experienced professional.
Example Term: Parallax focussing
Also “reticle focussing.” This is a focussing technique which relies on a ground glass which has a reticle – a small mark, such as crosshairs, etched or engraved onto its surface.
This mark is used as a focussing aid, particularly for macro work. The photographer looks at the mark and moves his or her eye. If the reticle appears stationary then the subject is deemed to be in focus. The technique exploits parallax differences, and really needs a magnifier attachment to be effective.
cf. parallax, reticle.
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