Thanks Moose and all who concern about this, I know you are trying to help I
was just very disappointed about the performance of 5D II. The problem
happen on all ISO while the low ISO are more obvious due to lack of sensor
noise. This problem shouldn't happen on an experience camera maufacturer.
Mask and random grain can help but this require extra work than a simple NR
and in some ways distorted the original image.
Yes, I have been searching for a good camera, while I thought the 5D II is
close (besides mirror vibration and viewfinder where they are even poorer
than my 30 years old OM) now it gives me some problem that I have never
think of. Actually, my criteria is not really tough, I was just bad luck. I
think you will also not accept a camera with tilt viewfinder, AF focus shift
or such noise issue.
I hope I can found a solution on that, at the mean time I can only shoot
with great care to avoid underexposure.
C.H.Ling
----- Original Message -----
From: "Moose"
> C.H.Ling wrote:
>> NeatImage was the first thing I tried, it improves but I was not totally
>> happy about the result, it left a trace of pattern when you look for it.
>>
>
> I agree, although in my test, it's very subtle. Is anyone not peering at
> 100%, looking for it, going to notice?
>
>> Stronger NR may eliminate the pattern but I hate the lost of details and
>> artificial look. I once do NI on almost all digital images but I found it
>> look too smooth to my taste so later when I really need NI I leave some
>> noise.
>>
>
> As I tried to show on the ISO 12,600 sample image, you really can't
> leave some of the existing pattern noise, as that makes the pattern
> noticeable. To avoid the plastic look, it's better to add noise without
> a pattern. There I used the Noise filter in PS, but somewhere around
> here, I have scans of blank film shots that may be used to add film
> looking grain. Added grain helps mask the tracks of the pattern noise,
> too.
>
>> Mask? what is mask,
>
> A mask layer that restricts the NR effect to only parts of the image.
> Pretty quick to do in PS and doesn't make the lighter parts look
> unnatural at all, as they are completely unaffected.
>
>> why I need that much work when other cheaper DSLRs don't require it.
>>
>
> You don't, unless there are other reasons to keep the 5D II. I was only
> trying to suggest alternatives for correcting at least the images you
> already have - perhaps even to make keeping the camera an option if you
> otherwise like it.
>
> You've gone through several DSLRs in the last few years, looking for
> perfection. Maybe it doesn't exist and you may need to pick the one with
> the least objectionable limitations?
>
> On the other hand, if you keep up the search, perhaps your findings will
> help us all. :-) You are certainly a tougher critic than any
> reviewers I know of.
>
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