I would have to agree. Most of these spec numbers are marketing hype and mean very little in actual usage. My 1D Mark IV can shoot in the 100,000 range but I hate the images that come out of it. I rarely push it past 6400 ISO and those would be extremely rare cases where I absolutely have to come back with an image and flash was prohibited.
at such high iso i doubt there will be a whole lot of difference between the 2 to be honest, I would expect great things from iso 100,000. I think we might see usability of images hit the ceiling in the 25k range
but noise tollerance is such a subjective thing as has been previously discussed. I think it will be spec bragging rights and thats about it.
I agree with you on the 25k range. The point for me will not be so much how high each machine goes in terms of ISO (like 51k versus 102k) but how clean they each are at ISO 12,800 and ISO 25,600. Being somewhat limited to a usable ISO 3200 currently with my 5D, hell a clean ISO 12k or 25k seem like heaven! I really hope this new sensor Canon has delivers !
Yeah those numbers are in good part just a game. Sometimes you might glean a little about how things might differ compared to previous models, but even then you can't be sure. Heck Nikon had an ISO6400 camera back in the pre-20D days I think and we know Nikon could barely, if even, handle ISO800 in a usable fashion then and even Canon got rough at ISO1600 and yet they said they had an ISO6400 cam and what one person thinks is a good point another may differ on by a stop or two. Canon used to be a bit more conservative as to claims in the past then but then switched gears, probably to not sound bad on paper in comparison to other marketing blurbs.
I saw the 1DX at Photoplus, and on the LCD screen, ISO25k images were stunning. I'd say they are on par with ISO400-800 from a 1DS MKII. I'm not one to blow smoke up a company's ass, in fact I feel that Canon has severely dropped the ball on anything made post-1D MKII (with the exception of the 1DS MKIII). I still use 1D MKII and 1DS MKII's, and have yet to feel the need to invest in anything newer, that would take care of both in one (and FF).
Until now. After fully examining it at Photoplus, the 1DX answers all my qualms with a DSLR about still photos, other than faster flash sync speed. Well done, Canon.