« on: September 15, 2013, 01:58:39 PM »
Question is what do you shoot?
If quick autofocus for sports, birds, etc., is most important, then go with 7D or 70D, or spend way up and get the 5D3.
If you need the 1.6x crop "boost" to lens length, because you cannot afford thousands for a high-quality long telephoto lens, then go with the 7D or 70D instead of the 5D3.
If you shoot important things in lower light and really want a couple of stops of better high-ISO performance, go with the full frame 6D or 5D3.
If you want the shallowest DOF go with the FF 6D or 5D3.
If you need these two things and thus need FF, and you don't want to spend the extra on the 5D3, go 6D.
If you have about $10k to spend for body plus lenses to get you back to the same max focal lengths you would have with a 1.6x crop, go 5D3.
Personally, I am going with a 2-body solution instead of trying to get one body that does it all. I went FF but got the 6D instead of 5D3. When the 7D2 comes out, I intend to either buy it or buy a 70D, which will become my outside sports body. The 6D will be my regular shooter and indoor sports shooter.