On 6 December 2010 16:03, paul stenquist <pnstenqu...@comcast.net> wrote:
>
> On Dec 6, 2010, at 3:33 PM, Charles Robinson wrote:
>
>> On Dec 6, 2010, at 14:19, Miserere wrote:
>>
>>> Any of you guys with a K-5 experiencing any of this?
>>>
>>> http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=37092371
>>>
>>> http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=37101106
>>>
>>> Maybe you K-7 owners could take a look too. No need to transfer test
>>> images to the computer, the blobs can be seen on the LCD.
>>>
>>
>> Frankly, if the images turn out OK (besides being all green) then there is 
>> no problem.  Interesting as a curiosity, but not in a "OMG the sky is 
>> falling" kind of way.
>>
>> Seriously... why would a person even bother looking for something like this 
>> unless it's affecting the output?
>>
>> And by "affect the output" I mean: can this really be SEEN on something 
>> other than an f/22 shot of a blank grey surface?
>
> It could be seen on any number of small aperture shots. I'm definitely going 
> to test for it.
> Paul

Thanks for the replies so far, and please keep 'em coming.

My test unit has a string of blobs near the center (most people seem
to report them "near the center" for what it's worth). They are
noticeable at f/8 and smaller when photographing a blank surface; I
suspect in real photographs (with plenty of detail) they should
*maybe* be noticeable at f/11 and onwards. I rarely photograph at such
apertures, but I can imagine people shooting landscapes would be
annoyed to find these blobs in their blue skies. Then again, a blob in
a blue sky is easy to clone out. Then again, again, we'd all prefer
not to have to clone out blobs as part of our postprocessing.


   —M.

    \/\/o/\/\ --> http://WorldOfMiserere.com

    http://EnticingTheLight.com
    A Quest for Photographic Enlightenment

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