I want to learn do aberrations and compensation actions used as unsharp filter for final image ?
I read a Leica paper. There was symmetrical lens Summicron as a subject. I found that at the exit of the lens there were no aberrations without corrected. But when you look inside , some lens elements at the left side highly aberrated and there were lens elements with highly negative aberrations at the right side as an compansating action.
Unsharp masking is to blend a normal picture with its low contrast version to create edge effect and the sharpness. Low contrast version might be separated from the original , based on a color without being member of RGB CMYK separation colors.
Mustafa Umut Sarac
Istanbul
I read a Leica paper. There was symmetrical lens Summicron as a subject. I found that at the exit of the lens there were no aberrations without corrected. But when you look inside , some lens elements at the left side highly aberrated and there were lens elements with highly negative aberrations at the right side as an compansating action.
Unsharp masking is to blend a normal picture with its low contrast version to create edge effect and the sharpness. Low contrast version might be separated from the original , based on a color without being member of RGB CMYK separation colors.
Mustafa Umut Sarac
Istanbul
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