Blackwood
Contributor
Depending on when your next trip is (and your budget) you may be able to wait on a 5D mkII until a MkIII comes out. I got my 5D + housing from a guy who was buying the 5D MkII the week they were released. Jot older technology, but saved $$$.
5d3 = unannounced and theoretical.
Supposedly Canon's supply chain is back up after the earthquake, but new models may be a year off. I hope I'm wrong.
I've been waiting for the 5d2 to be replaced. It has quite nice IQ (though if I dust already own canon bodies and glass I'd be tending towards Nikon), but the autofocus system is what, 6 years old, slow and reportedly inaccurate?
That's fine for posed and landscape work, but wildlife and underwater it may be a deal breaker.
The 5d2 sensor + 7d AF is the consumer dream camera, but it would compete with the 1ds3, so the price-point of such a model is a huge question mark.
I hope they replace the 5d2 with an eye towards Nikon's D3S.