Official definition of reach

Started Jan 23, 2011 | Discussions thread
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Peter Shute Regular Member • Posts: 198
Official definition of reach

Can anyone tell me if there is an official definition of the word "reach" as used in photography? Searching and asking around, I've found several variations of use, but no actual definitions. Usage seems to include:

  • focal length

  • magnification on the sensor

  • usable magnification when printed

These all make sense, but aren't the same.

People who maintain dictionaries tend to keep track of usages like these, so I'm surprised it isn't in one of them. It makes me think it's a relatively new usage. Can anyone tell me how long it's been used in photography?

Please note: feel free to list more possible definitions, but what I'm after here is a reference to an official definition, not an argument about what it means, or whether SLRs are better than compact cameras.

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