photoSmart42
New member
Thanks, Jonas. I underexposed it because Jerry said that was the scenario in which this happened most often. I do see that some of the noise is gathered in what could be interpreted as bands, horizontal and vertical, so I think I can see the effect described, and it doesn't appear as bad on my particular camera as in photos I've seen online. Guess I got lucky.As mentioned your image is purposely underexposed. Let's say it was underexposed by necessity, that the light in it was all you could get in a certain situation. Then you would like to increase the "exposure" in your raw converter.... and you would get blotchy noise and banding all over. (This also applies to shadow areas in normally exposed images.)
Taking a -3EV photo, then exposing it to +3EV in post would be like taking a -9EV photo in the first place, so I'd expect that noise would be a huge factor for that photo. Does noise processing software have an issue correcting banding more than just uniform noise? Is that why banding is problematic to begin with?