rscheffler
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 p.2 #3 · 1DX buffer depth video | |
Lars Johnsson wrote:
rscheffler wrote:
http://www.robgalbraith.com/bins/content_page.asp?cid=7-11674-12366
D4 with a Lexar 1000x CF card will do 66 continuous frames at 10fps. My guess is the 1DX at 10fps would probably be in the low to mid 40s? Two seconds of additional continuous action is considerable though.
The question always comes up: why would anyone need to shoot continuously for that long? At least in my shooting experience, there can be times covering sports when a play develops into one that is much longer than anticipated. For example, in football, focusing on the QB as he drops back and shooting him doing so (perhaps anticipating a sack) as he throws or hands off, then continuing to shoot the play, which becomes a long run or catch and run for TD, then photographing the reaction/jubilation afterwards. This can easily spread out over 5-10 seconds of nearly continuous action, is difficult to predict and therefore difficult to conserve buffer space. Shooting Jpeg helps, and sometimes is the better option.
In the scenario you give her, I don't belive anybody would press the shutter button at the highest speed all the time 
And the Nikon also have a little bit less resolution of course
Lars, believe whatever you like, as I know you can be difficult to persuade otherwise. Quarterback drops back and rolls out looking for a receiver, linebacker in pursuit - 10-15 frames easily - pitches it to a nearby running back, breaks a tackle and punches through a seam in the defense - 10-15 frames - makes a 20-30 yard run - 20-30 frames, based on the rough average of 10 yards per second. As you can see, it's possible to hit a relatively generous buffer limit. No, it won't happen all that frequently, but I'd much rather not have to think about it. Of course not all of those images will be keepers, or great, but it's good to have the choice and at least for my client, they expect a broad selection of images to meet their production requirements. Having shot roughly 200 NFL football games for them now, most of which have been on digital, starting with the original 1D, I have hit the buffer wall a lot and the limitation conditioned me to subconsciously conserve buffer capacity whenever possible by letting off the shutter after about 1.5 seconds. But the consequence has been missed shots. It's really only with the 1DIV where the buffer has been O...K..., in part because of UDMA6 support that emptied the buffer in about 7 seconds, rather than 25-35 seconds in all previous 1D cameras.
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