G1X Brief Hands-On

hoof wrote:

But there are other factors. Sure the x10 might be faster, but my experience with sub-F/2.8 lenses on DSLRs indicate that often that speed comes with an IQ cost (especially in the corners). What's the CA (especially LoCA) like on the faster lens? How's coma handled? How is the IQ in the corners? I suspect the faster X10 lens will be likely inferior in IQ wide open to the G1X.