Which 35mm 1.4 has the "flattest" focus field at close distance?

anotherMike wrote:

Wow, that's really close for a 35mm lens. I'd suggest a macro lens is what you're really after - flatter field, optimized for close distances.

I've got the Sigma 35, but never tested it that close. I tend to doubt it's flat enough field for that sort of work though. Honestly don't have the time for a few weeks to run any tests, so my usefulness to you for this thread isn't muc, so I better leave now before I waste any more of your time. Sorry!

-m