Why your guys don't use the free software came with your Canyon camera? CS
has BIG PROBLEM in rendering at least the 5D II files, see here a test image
that undered 4 stops:
Converted with DPP +2 stops:
http://www.accura.com.hk/temp/IMG_7217_DPP.JPG (142KB)
Converted with CS4 +2 stops:
http://www.accura.com.hk/temp/IMG_7217_CS4.jpg (174KB)
both W/B on the "White" color. See the serious color shift in CS4 converted
one, not to mention the different in exposure.
Try it out yourself if you are interested, may be I have missed something:
http://www.accura.com.hk/temp/IMG_7217.CR2 (6.8MB)
Back to the noise issue, here are two crops from DPP, one normal
exposure and the other +1 stop in DPP.
http://www.accura.com.hk/temp/IMG_6442.JPG
http://www.accura.com.hk/temp/IMG_6442+1.JPG
There are visible noise even with the non boost one, remember this is
an ISO100 image, just hard to accept!
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt"
>I must be blind. I didn't open this file before because my CS3 can't
> handle 5D MkII files. However, I decided to try an ACR conversion in my
> trial version of Elements which does handle it. I do see banding on the
> wood paneling in the background at lower far right. But to make it
> visible I have to increase fill light to 100 while also increasing
> exposure by a full stop. That's something I'd never do. Are my new
> eyes or monitor that bad?
>
> Chuck Norcutt
>
>
> C.H.Ling wrote:
>> Moose, I think you are right, it is highly possible A/D problem, I have
>> checked with some low ISO images, there are large size "noise" at the
>> shadow
>> area even without boost up, what 14 bit A/D seems not doing better than
>> the
>> E-1, all are BS, even the 40D images look better.
>>
>> There has been a long time curious for me why some OOF background didn't
>> look as smooth as they should be, it was not enough bit deep. Now there
>> is
>> one more thing to look for when checking out a new camera.
>>
>> C.H.Ling
>>
>>
>> ----- Original Message -----
>> From: "C.H.Ling"
>>
>>> Yes, there is similar problem even at full resolution:
>>>
>>> http://www.accura.com.hk/temp/IMG_6442.CR2 (23MB)
>>>
>>> I really have no idea how this happen as a totally dark low ISO image is
>>> very clean even boost up, at the mean time high ISO image is clean
>>> except
>>> the shadow, just like problem with low ISO image.
>>>
>>> C.H.Ling
>>>
--
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