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Greetings,
An old message that I was getting ready to delete while doing some
e-mail clean-up. Anyway I know this falls in the Photography 101
category but what is meant by pincushion or barrel distortion? Why does
stopped down lens get good edge to edge sharpness (optics question I
guess)?
> I need to shoot with it stopped down to at least F 4.0 to get good
> edge to
> edge sharpness (not depth of field, I'm talking like on a flat brick
> wall
> straight at it - lens test I do anyway to see if my lenses have
> pincushion
> or barrel distortion - find a brick wall that wasn't laid on a Friday
> afternoon). :)
>
Greg Anderson
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