7d High Speed Continuous Shooting

Discussion in 'Digital Photography' started by UWF404, Apr 25, 2010.

  1. UWF404 macrumors regular

    Joined:
    Jan 6, 2004
    #1
    Ok, I'm a newbie to this camera so please bare with me. However, yesterday I was out taking pictures at a soccer game with the 7D and a 70-200MM IS L lens. I had the camera set to TV, auto ISO and high speed continuous shooting. Was having fun.. Somewhere between my first round of shots and the second the high speed mode quit working and would only shoot normal mode? Also, I've noticed that shooting indoors in high speed mode works some of the time only.

    I must be missing something?
     
  2. robbieduncan Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #2
    How long between the 1st and 2nd batch of shots? How many shots per batch? How fast is your CF card?
     
  3. UWF404 thread starter macrumors regular

    Joined:
    Jan 6, 2004
    #3
    I shot a few in high speed mode and then stopped shooting for 5 minutes. I'm using a Sandisk Ultra 8GB card (30mb/s)
     
  4. robbieduncan Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #4
    Well 5 minutes would be more than long enough to clear the buffer so that's that theory gone :eek:
     
  5. firestarter macrumors 603

    firestarter

    Joined:
    Dec 31, 2002
    Location:
    Green and pleasant land
    #5
    Just wondering if you changed the focus mode, and it wouldn't shoot without first confirming focus?
     
  6. AlaskaMoose macrumors 65816

    Joined:
    Apr 26, 2008
    Location:
    Alaska
    #6
    I would use Av instead of Tv. This way I could control lens aperture and isolate the subject a little easier.

    When that happens again, make sure that the camera is still set to AI-Servo and burst mode. At least with my 40D, I can sometimes change the setting from burst to single-shot if I am not paying attention.
     
  7. jerryrock macrumors 6502

    jerryrock

    Joined:
    Sep 11, 2007
    Location:
    Amsterdam, NY
    #7
    The card you are using is not the fastest and is not UDMA compatible, which is required for the maximum frame rate. There are other factors that affect shooting speed like ISO speed, focus., picture style, low battery, lens, etc.
    Low light or indoor photos will also reduce the maximum frame rate.

    Canon's claim of 8 frames/sec is with ISO 100, normal picture style.

    DPP's review of the camera was able to attain the maximum frame rate using the Sandisk Extreme Pro (90mb/sec) CF card.
     

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