7D High Speed Shooting Question (Buffer)

I took my 7D out this last Friday to take some photos at the airshow. It has the latest bios 1.1.0 and I was running a 16 Gig UDMA 400X San Disk Card with the battery grip.

The buffer showed 99 photos and during the course of shooting, I had it set set to Manual with H speed. At some point during the shooting the camera buffer bottomed out and would only let me shoot 4 JPEGs at any given burst.

I tried resetting the camera settings and it did not solve the issue
I resolved this by resetting the custom settings.

Any idea what happened? I was a little disappointed after having to tinker around with the camera to resolve this in the middle of prime time action.

If you by "BIOS" mean camera firmware, the latest is 1.2.2.

If you fill the buffer, it takes a while to flush it out. You can see the capacity in the viewfinder, as it goes down to zero, then recover again gradually.

If you don't get more than a few frames at any time, you've turned on RAW+JPEG or set high ISO noise reduction to strong or possibly both.

I bought a 7D yesterday and stumbled upon above mentioned thing. In settings set noise reduction on high iso to standard or deactivate. I tested it 1 min ago and went from 4 shots to 84.

jvk wrote in post #10893494
I bought a 7D yesterday and stumbled upon above mentioned thing. In settings set noise reduction on high iso to standard or deactivate. I tested it 1 min ago and went from 4 shots to 84.

this is what I was about to post too.... same thing happened to me. I played around with he settings and caused the same issue. This is actually in the manual, if you are not getting the high speed shooting it tells you to check for this.

You guys are awesome! Thanks for the info. I'm going back out for a little bit today to try and catch the FA/18 Demo.

I just did it on my 50D and went from 47 large/fine jpegs to 4 in max burst with the noise reduction set to strong(i had the ISO at 1600). I checked raw and it went from 14 to 8. Sneaky Canon, trying to slow down my burst rate.

Nick

I think it's rather the opposite. In the most recent models, there are at least two noise reduction settings which don't affect buffer depth. My 40D has only one setting, and that does reduce the buffer size.

Try the low setting. It will only try to reduce chromatic noise, but will leave the luminance alone. Keeps most of the detail but still improves image quality.
Yeah, yeah, I know it all about RAW and endless possibilities in the computer, but if you want/need jpeg from the camera, then...

If you are still wanting the buffer to recover faster you can use a faster CF card. I rarely shoot more than 8 shots in high-speed mode and I use a 45MB/s card that clears pretty quickly. Now some of the cards are up to 60MB/s or 90MB/s. These will clear the buffer quicker to get you back to 8fps shooting.

Apersson850..

This is for you! Thanks for the help!