Changes in key layout compared to 1D mk iv are disappointing. Otherwise this is an amazing update. And considering how beautiful the mk iv is, I'm a bit shocked. I didn't think the camera could be that much better. Many people have written extensively about this camera. Read their reviews if you need more information. As for me, I'm happy, it's a great camera and I don't have to get used to the changes. TO UPDATE. I've owned it for four days and managed to get at least 800 shots! The internet has told me again and again. it wasn't much of an improvement over the 1d mk iv. I think the internet is wrong. Most things work much better with this camera. Enlarging the thumbnail is an example of what doesn't work better; this is complete crap. Last week before I bought this I took pictures during game practice. In Av mode my 1D mk iv tried to make everything gray so the black curtains in the background of the scene were terribly overexposed. I took the same shots today and this camera managed to keep the black curtains black. Magic. Overall, I was a bit concerned that this camera might disappoint me. No chance. This is a huge update.
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