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This is longitudinal aberration; visible even in the center, so the test chart isn't actually in focus.
by blattimwind 9y ago
This is longitudinal aberration; visible even in the center, so the test chart isn't actually in focus.
- vvanders 9y agoNo, that's chroma aberration(of which longitudinal is a type), the Canon 100/2 exhibits the exact same purple fringing on high contrast areas. I know because it's what I moved from when I got my 135L. If that was out of focus you'd see a clean transition from black->grey on the edges and a lot more of the detail would be lost.
- CarVac 9y agoIt is longitudinal aberration, but that just means that you can't actually get all colors in focus. It can be nice for portraits but in general is a flaw.