Sort of the point i was making in a roundabout way when i linked to the other blog, what one guy can get out of his equipment another guy cant, so it doesnt mean one system is better than the other, it's one reviewers opinion based on how he set up the equipment, ive seen enough good and bad images from both the 1DX and D4S cameras to actually put it down to each individuals skill level in setting the camera up to the best which can be squeezed out of it in many different situations.
Theres a guy on here who in my mind produces better images with his D3 than i can with my D3S and when i owned a Canon 40D i was producing better images with that than pros who were using 1D MKII's
Got to agree with you Gary.
I'm not an experienced sports shooter but have spent a lot of time recently setting up the servo AF on a 1D4 and 5D3. The number of performance considerations is truly massive.
The camera aside, the lens, the light level and where it's coming from, subject, subject size and distance, speed, direction, accelleration etc etc. Then overlay that with the number AF settings, basic icon modes, custom tweaks and other settings, AF zones and point selections. How many permutations is that? I don't know, but it's several dozen for starters.
Then there is the user, how well the camera has been set up, and how well it is used. To do it properly you need good technical understanding, a lot of set-up testing in different circumstances, and a great deal of skill behind the camera.
Most folks only test and use within a very limited range. Not a criticism, just a fact, and the guy that uses mostly a big prime to shoot floodlit soccer is not the same as the other shooting athletics with a zoom in good daylight, or another shooting motorsport or BIFing.
All you can really say is, under this particular set of very specific circumstances, one camera did this and the other camera did that. That's useful info of course, but a million miles from conclusive when you're talking about cameras like the D4 and 1DS.