Everyone: thanks for those replies - much appreciated!
Nicolaie: I'll say it once again: that's the max. of 5 FPS is what I seemed to get when shooting under VERY demanding lighting conditions... try doing that frame rate on a (moving) wild animal in less than ideal lighting conditions. No system will shoot at the max. FPS in that situation... not even the Nikon D3 or the MK III series bodies, unless it's a completely static object, which requires little or no skill. Quoting a set of lab results is fine, but they are only lab results - nothing more. The required AF re-focus and lock on a moving subject slows down the FPS - every time. I'd like to try faster cards, but the buffer slowed after 5 frames. Remember, I am not shooting JPEG - I am shooting RAW. It's a requirement of the contest to ensure the rulesets are observed.
Please re-read the post - I clearly stated the Canon is superb under certain conditions. I am sure DPR got 6 FPS - but in more optimal conditions than I was shooting in. Besides, any higher FPS is not much use if the AF is incorrectly locking (on the body and not the head, despite focusing on the head) in low light conditions. This 40D could have been an anomaly - I do not know. The Pentax wasn't great under certain conditions either - more than a few missed shots. They all have strengths and weaknesses. That's why I used each system under a specific set of conditions, knowing it was the better choice for the situation.
You are welcome to shoot in those same conditions with a $4200 Sigma 500/4.5 attached. It wasn't for lack of good glass - this is one of Sigma's best lenses - the EX series. Sometimes I wonder if having a MK II or III would've been the best option. However, I must take what I am given! I had the wonderful opportunity to shoot with $5500 worth of Canon specific gear as part of a sponsorship loan. If anything, not paying for the gear would be the better option to test it out... I am not tied to it financially and perhaps it's possible that I might be a little more objective in my opinions? I was really excited about the opportunity to try another system and see how it would do. Same goes for the K20D - it's a loaner too.
Just over 10,100 images were shot on the 40D in less than 30 days - often they were 10-12 hour days. The Canon system was my PRIMARY system for the shoot (500mm is a big deal for birding and most wildlife work). This is not just a series of static objects and lab tests - it's the real world, in a wide open environment. I believe that gives me some idea of the strengths and weaknesses of a camera system, especially under sometimes very demanding conditions... low light, overcast conditions, often into shaded areas... which I clearly specified...
As an FYI, are you familiar with sportshooter.com? That is where I leveraged some valuable Canon expertise from a member there - and he's quite competent, including multiple MK II and MK III bodies. Since he shot with Canon from day 1, it's my hope that he has some idea of how to tweak the Canon systems camera for best results. I also am part of a photo society where 90%+ of the membership shoot Canon. Same goes for the camera store - they know Canon products! Did you not think I wouldn't talk to some knowledgeable folks in either area as well? Absolutely - otherwise I am doing my sponsors a disservice if I do not.
Perhaps you've seen my website? I will let you decide what you will - please take a look at then you tell me if you think Pentax is not capable... or you can check these posts out:
https://www.pentaxforums.com/forums/post-your-photos/27842-great-white-egret.html https://www.pentaxforums.com/forums/post-your-photos/26923-african-wildlife-a...4x36-hung.html
(the running Zebra is a panning shot captured with Pentax)
Mid-America Photography Symposium
BTW, the bird image in the 3rd link is taken with the Canon system - and it's a favorite of mine, as do another image that I've not yet published, and it's with Canon...
Regards,
Marc
Last edited by Marc Langille; 06-30-2008 at 08:22 PM.