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Re: [OM] 5D II pattern noise problem

Subject: Re: [OM] 5D II pattern noise problem
From: "C.H.Ling" <ch_photo@xxxxxxxxxxxxx>
Date: Tue, 1 Dec 2009 10:00:46 +0800
I have tried both CS4 and Can*n DPP both have the same problem, another 
problem I found at the same time is CS4 failed the color accuracy to a great 
extend on the shadow, that is why I always stick with original RAW converter 
from camera manufacturer.

I won't consider 1 stop is deep, check the RAW I just posted.

I may try "dark exposure" compensation but this is not a "real" solution. 
For such an expensive camera I didn't expect it is so poor!

C.H.Ling

----- Original Message ----- 
From: "Ken Norton"

> I'm curious as to whether a change in RAW converters might clear that 
> noise
> pattern. I've had similar patterns with my A1 and E1 and when I open the
> files in RawTherapee I change from one algorithm to another and it has a
> huge impact on pattern noise. It makes me suspect that the 5DMk2, as well 
> as
> the 50D, might have a slightly different RGBG configuration than previous
> cameras.
>
> Regardless, one has to dig pretty deep to get that noise, though.
>
> If the noise pattern is fixed, you might be able to do a "dark exposure" 
> for
> inverting on the real photo.
>
> AG

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