do you really need faster than f/2.8

Started Sep 25, 2012 | Discussions thread
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edwardaneal
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do you really need faster than f/2.8
Sep 25, 2012

check out this article I find the last graph very interesting - it seems that starting at around f/2.8 camera manufactures push up the sensor gain to compensate for the fact that the sensors really cant fully use faster apertures. The Sony in the graph seems to really push it up

http://www.dxomark.com/index.php/Publications/DxOMark-Insights/F-stop-blues

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NEX-7 & Sigma 30mm f/2.8
NEX-5 & 18-55 OSS
And a spare black 18-55

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Sony Alpha NEX-7 Sigma 60mm F2.8 DN Carl Zeiss Touit 1.8/32
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