I'm not the science guy, but here's my attempt to show a few different options for the Panasonic GH2. My favorite is my SMC Pentax 50mm 1.4. The focusing action on it is very nice and I like the look. $100 on ebay.
This test isn't meant to prove anything other than what a person can do when they have about 20 minutes of spare time.
http://www.vimeo.com/23468470
This test isn't meant to prove anything other than what a person can do when they have about 20 minutes of spare time.
http://www.vimeo.com/23468470