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Old Jul 3, 2011, 5:05 AM   #1
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Default The mm in lens

Can someone please refer me to a link or explain it that what is with the mm in lens. E.g. my fz40 has a 25mm.

What does it signify? Also, something about the focal length would be a great help too
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Old Jul 3, 2011, 11:58 AM   #2
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These links should give you the answers you want

http://en.wikipedia.org/wiki/Focal_length

http://hyperphysics.phy-astr.gsu.edu...pt/foclen.html

http://www.paragon-press.com/lens/lenchart.htm
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Old Jul 4, 2011, 5:10 PM   #3
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Thanks a LOT square one. Those pages made more sense than usually do
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Old Jul 6, 2011, 2:40 PM   #4
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No problem xHassan
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