cnphoto
Well-known
I haven't coded either of my lenses (21SA and 40mm Rokkor/Summicron).
For the 21SA, coding may reduce cyan/magenta fringing but I haven't experienced it like some have. It's barely noticeable, and if it is I just reduce the cyan colour saturation in Aperture until it is mostly gone - works pretty well.
I havent received an IR/UV filter for the lens yet, so using a filter may result in more fringing and if so then coding would be more advantageous.
I think most people are coding the lens as a WATE?
ALSO, as an FYI: B+W 49mm 486 filters do not fit in the hood, the diameter for the filter is 1mm too thick. I'll either be swapping the glass in my filter over in to my Series VI B+W UV-A filter or filing down the 49mm filter diameter a little so it fits (these filters in 48mm or Series VI are impossible to find out here).
For the 21SA, coding may reduce cyan/magenta fringing but I haven't experienced it like some have. It's barely noticeable, and if it is I just reduce the cyan colour saturation in Aperture until it is mostly gone - works pretty well.
I havent received an IR/UV filter for the lens yet, so using a filter may result in more fringing and if so then coding would be more advantageous.
I think most people are coding the lens as a WATE?
ALSO, as an FYI: B+W 49mm 486 filters do not fit in the hood, the diameter for the filter is 1mm too thick. I'll either be swapping the glass in my filter over in to my Series VI B+W UV-A filter or filing down the 49mm filter diameter a little so it fits (these filters in 48mm or Series VI are impossible to find out here).
Last edited: