Why do older camera lenses have faster F-stops?

Started Apr 14, 2013 | Discussions thread
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Joseph S Wisniewski Forum Pro • Posts: 34,114
f1.8 equivalents...
6

Yes, because it's micro four thirds, and the DOF and you need f0.9 to have the light gathering and DOF equivalent of the "plastic fantastic" $100 f1.8 lenses on FF. So, some old "cine" lenses get reincarnated.

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Rahon Klavanian 1912-2008.
Armenian genocide survivor, amazing cook, scrabble master, and loving grandmother. You will be missed.
Ciao! Joseph
www.swissarmyfork.com

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