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#11
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300d black body
Before some questions, I'll just summarise the noise figures that have so
far been provided: ISO100 ISO200 ISO400 ISO800 ISO1600 ISO3200 Olympus E1 43dB 42dB 40dB 39dB 34dB 30dB Sigma SD10 42dB Nikon D70 ---- 42dB 41dB 39dB 37dB Canon 1D Mk II 50dB Were the above noise figures obtained by using a grey card? If not, what color was used? Was more than one color used for the noise tests? As there may be different noise levels associated with different colors, it would be interesting to see a matrix of noise figures for something like the GretagMacbeth ColorChecker. These figures could then be averaged and a standard deviation calculated to see how much variation there was in the noise level from one color to another. But then again, it might not show anything much beyond the single noise figure. -- Witold. |
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