[LRflex] color accuracy vs. high-ISO performance
- From: Doug Herr <wildlightphoto@xxxxxxxxxxxxx>
- To: LeicaReflex <leicareflex@xxxxxxxxxxxxx>
- Date: Fri, 4 Dec 2009 09:40:50 -0500 (EST)
There's an interesting thread on fredmiranda.com that discusses the tradeoffs
between sensor color accuracy and low-noise high-ISO performance:
http://www.fredmiranda.com/forum/topic/836083
there's a lot to wade through but it seems that better color accuracy comes to
a large degree from sharp frequency cut-off in the sensor's color filter array
(CFA) which limits bleeding of one wavelength into a photosite intended for
another wavelength; a sensor with a weaker CFA requires less amplification so
high-ISO noise is less.
If this is true it would help explain the DMR's poorer high-ISO noise
performance along with its excellent no-fuss colors.
Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com
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