Based on a question about f/8 AF, I was directed to Arthur Morris, a renown bird photographer. On his site is an interview between Doug Brown (another renown bird photographer) and Canon's Chuck Westfall (http://www.birdsasart-blog.com/2011/11/05/canons-top-tech-rep-on-the-eos-1d-x/). While the meat of the first part of the interview was about the 1D X's new AF system, with a pointed question about f/8 AF (left largely unanswered), there was another interesting tidbit farther down:
Chuck seems pointed about his indication that to get two "full" stops of improved ISO performance, you need to shoot in JPEG. I'm curious if there has been more information about that elsewhere? I'm curious what that means for RAW photographers, and what he actually means by "significantly better" if its not a full two stops better.
Arthur Morris: http://www.birdsasart-blog.com/
Doug Brown: http://www.dougbrownphotography.com/
DB: One of the advantages of moving to a full-frame sensor with a relatively low megapixel count is an improvement in high ISO noise levels. Canon is claiming a two stop gain in high ISO performance when compared to the 1D Mark IV. Will we see the full two stops when shooting RAW files, or is this limited to JPEG files only?
CW: To get the full two stops of improved performance you’ll need to shoot in the JPEG format. That’s not to say that high ISO performance isn’t significantly better when shooting in RAW, because it absolutely is.
Chuck seems pointed about his indication that to get two "full" stops of improved ISO performance, you need to shoot in JPEG. I'm curious if there has been more information about that elsewhere? I'm curious what that means for RAW photographers, and what he actually means by "significantly better" if its not a full two stops better.
Arthur Morris: http://www.birdsasart-blog.com/
Doug Brown: http://www.dougbrownphotography.com/