[attic]

I found this article on mixing in cans. It refers to the Sennheiser HD650s and it is well stated. I thought I would share as this is an often asked question and I felt this was better info then I have read most places. I hope this helps someone. Pay attention to the part on his comparison with real monitors.
 
Can you really produce on headphones?
http://www.attackmagazine.com/features/can-you-produce-music-on-headphones/#comment-209