Jon Warwick Posted August 27, 2014 Share #1 Posted August 27, 2014 Advertisement (gone after registration) On a few images -- which are resized very large (i.e., at a minimum of 30"x20") -- that i've taken with the Leica M240 + latest 50mm Summicron f2 (Non-APO), I notice that certain parts of a minority of images have "colour" that shouldn't be there ..... it's like a dusting of colours that kind of look like a blend of orange / blue that is certainly not natural. I've seen it in parts of an image that contains dense fabrics such as a clothes top (but it's not a wavy patterned look that I'd assume is moire -- again, it's a more like a dusting of unnatural colour). I've also seen it in images where there is higher contrast such as a glacier's ice in the mountains, and in the area of a landscape image where there are a lot of small rocks on a distant mountain side. Given i'm new to this issue, is this most likely colour noise ... (or less likely moire) ..... or chromatic aberration? And if so, any recommendations to resolve it in post processing .... or alternatively, is this a lens (e.g., non-APO??) issue? Link to post Share on other sites More sharing options...
Advertisement Posted August 27, 2014 Posted August 27, 2014 Hi Jon Warwick, Take a look here Colour noise, C.A., etc?. I'm sure you'll find what you were looking for!
jaapv Posted August 27, 2014 Share #2 Posted August 27, 2014 Colour aliasing is not necessarily like the classic Moiré examples that we all know. It can follow the pattern of the structure that causes it. Link to post Share on other sites More sharing options...
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