I\'d like to start a discussion with the goal of us identifying \"the perfect CA target\" for testing lenses.
Criteria:
- Must be able to indicate, with good accuracy, both types of CA (maybe this means two targets).
- Must be a readily available object, so that we can all use it.
Let\'s face it, we all own and use different lenses, and none of us have them all. It would be great if we could put our collective efforts together by shooting a common target (with a consistent method) and comparing the results. I\'d love, for instance, to be able to compare the CA of my FD 35/2 to the Rokkor 35/1.8, EF 35/1.2 L, Nikkor 35/1.4, etc. It\'s just not realistic for any single one of us to do so (I don\'t think).
Is there a better target than the white ruler or white page of text in full sunlight?
Do we need two different targets for the two different types of CA?
Sep 21, 2009 at 08:57 AM
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