I've a question/thought about patience.........
Canon have just dumped the "long-awaited" 5D replacement on the market, and almost simultaneously the 50D.
Now, I love sports photography, or photographing my kids on their sports days at school and my humble 30D can reliably bang out 5fps which is great, but I'd love to go FF to get the lower noise, bigger pixels advantage. But under 4fps on the 5D MkII...? What's going on??? From experience, that's not good enough. So, is anyone else wondering if the "5D MkIII" might up the frames per second issue? We could be talking another three years wait!!! Is anyone else annoyed that Canon has put a not-so-useful video facility onto the 5D MkII, rather than a faster frame rate? And what about the 50D? Well, on paper it looks wonderful, and that rear-screen looks amazing. But, according the "The Digital Picture.com" the density of the pixels is beginning to seriously limit the aperture size. The claim is that smaller than f/7.6 and the 50D's sensor will begin to cause diffraction issues, whereas my 30D is good up to f/10.3 and the old 5D was ok up to f/13.2. Subjects like the moon, require around f/11, give-or-take, so my 30D is still just about 'ok'.
Am I being over-cautious? Does the 50D suffer when you close down the aperture? Anyone tried it out for real? I read that the 50D needs the best lenses (ie 'L') to minimise this potential issue.... Any thoughts anyone? Should I wait, and keep my 30D as a back-up when I can go FF with more than 5fps (like the 50D's 6.3!) or are the 50D's diffaction issues for pixel-peepers only???? 



