----- Original Message -----
From: "Toine Kuiper"
Subject: Re: blue fringing
- The problem is not the lens. Chromatic aberration is different. I
have many lenses which I used on analog and I never saw this.
- It must be something after the lens.
- The Sony DSC-R1 is virtually free of blue fringing and uses CMOS.
Suspects are CCD chips or the anti alias filter. From what I
understand the anti alias filter scatters the image from the lens with
microscopic lenses. Maybe these micro lenses have chromatic aberration
or something else.
I don't know, maybe Sony finally solved it. What I do know is that the
DSC-R1 doesn't show this and all CCD camera's suffer from blue
fringing and all companies never mention it.
Anyway, I don't like blue fringes on my Pentax horizons and trees.
I suspect that Sony has solved it with software.
Interestingly, it's not something I have ever particlarly noticed with my
istD.
I remember when I was shooting high acutance film that I would often get
something akin to Mackie lines in high contrast tonal transitions, so it's
not just a digital sensor issue.
William Robb
