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Posted by Lance McNeill on June 1, 2001 12:59:38 UTC

Yea, I was aware that it get much harder to figure the lower the F-ratio gets. I also want it to be portable; nothing is set in glass yet so to speak. I may end up messuring the max lengh I can transport and use that as a guide. My thinking is really what size aperature can I handle? For a first project should start with something smaller than 10" and how much harder does it become when you go larger of 10"?

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