adrixe wrote in post #11170086
I guess what I wanted is to try a FF body. at the same time won't loose the high iso capabilities of the 1diii.
I don't shoot alot of sports, just for fun.
Well, each of the things you mention have good points, including the fact that your 1D3 is an excellent all-around body. For high ISO performance of course the 5D2 rules and the 1Ds2 lags the bunch. The 5D Classic of course is behind the 5D2 in that regard, but for years was the camera of choice for the shooting that you mention and, at $1k used these days, allow you to get "stuff" -- I'm not sure what kind of lens you are thinking of -- is that the 70-200 f/2.8 in your sig? People are getting a lot of mileage out of the 135 f/2 with the 5DC for this type of thing.
Myself, I was able to hold on to the 5DC and at the same time acquire the 1D3 and am myself quite happy with the combo. I wouldn't want to let either go, although for most of my "active" photography the 1D3 has strengths I want to keep, but then I love the 5DC in a "creative" sense!