Doesn't the t2i have live view? I would buy the zeiss+t2i and use live view to focus instead of trying to figure out a focus screen situation. When I had the 7d and wanted the zeiss 35, I looked everywhere for a 7d focus screen only to find that katzeye makes one for about $100 in it's most basic form and it's a **** to install. I sold the 7d and bought a 5d and ee-s focus screen. Now I'm in zeiss heaven. Have you looked into buying a used 5d? There are some nice ones in the for sale section, and I don't think that they're too much more than a new t2i.

