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sabin fota

21 Sep 2014 10:28



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Marius, uite aici: "...Because the camera has to interpolate pixels, the resulting picture is somewhat fuzzy. To offset this fuzziness, Canon applies an unsharp mask -- but you can see that it has produced dark rings around the brighter stars."

Intra in meniul camerei si seteaza o valoare mica la sharpening.

si mai una:

guatitamasluz wrote:

I took pictures in RAW.
Then the issue is with the piece of software you used to develop RAW files.

Yes, I had long exposure noise reduction on.
This doesn't matter.

in-camera sharpening is at the custom setting 3.
This also doesn't matter, unless you are using Canon's RAW software which obeys internal camera settings. Even in this case just turn sharpening down and the problem will be gone. Or use some kind of sharpening which doesn't cause as obvious ringing effects (sorry, don't have anything specific in mind).

So, while you are doing nightphotography, do you switch off any in camera sharpening settings?
In-camera sharpening doesn't have any effect on RAW files, except that it records the sharpening value that you have set in the camera. Then the RAW developing software may or may not read and use this value. In any case, turning sharpening down in your RAW developer will solve your problem.

I applied long exposure noise reduction to wash out possible hot pixels and it really worked on my 30D. Never had this black halo issue on it But okay, never took pictures at ISO 6400 anyway.
Long exposure noise reduction is a red herring. It has nothing to do with your issue.

Kind regards,