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I've got a couple of old manual-focus lenses (mid-80's vintage) that have troubles. I know the basic idea is pretty straightforward - undo screws & catch flying springs until you find the problem - but a simple demonstration of lens anatomy would be great. I've seen many, many diagrams of lens formulas, showing elements, their shapes, etc, but things like how turning the focus ring moves (one? more than one?) glass lenses forward and backward is a mystery to me. And nth-ing the enthusiasm - this is a fantastic thread.
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# ¿ Jan 30, 2014 05:52 |
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# ¿ May 15, 2024 09:53 |