Canon 40D's fps?

Discussion in 'Photography Beginners' Forum' started by JamieR, May 29, 2009.

  1. JamieR

    JamieR TPF Noob!

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    Right, the Canon 40D's fps is 6.5. I wanted to test this out. I took this sequence with it set to high speed continuous, i timed it from when she took off to when she landed in the bush and it was about 1.1 seconds, but i only managed to take 3 photos.

    What am i doing wrong? Is the 6.5 fps only valid when the photo size taken is set to small? Or medium?

    Here is the sequence....

    [​IMG]
     
  2. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    How precise was your timing?

    Also, isn't there an option to set the FPS to 6.5 or something slower like 3?
     
  3. JamieR

    JamieR TPF Noob!

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    Well my timing was just done by eye, so it's not the perfect experiment in that sense. But i would imagine i'd of got more shots off than what i actually did.

    I'm not sure about the settings part, i will check my manual.

    EDIT: Just checked manual and a few factors affect the continuos shooting.

    -Low battery will make it slower - i had full battery
    -AI Servo Mode AF will make it slower - i was shooting one-shot AF

    There are 2 settings, continuous (3fps) and High Speed Continuos (6.5fps). I had it set to 6.5fps.

    I'm a bit confused on this one.
     
  4. JamieR

    JamieR TPF Noob!

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    Here is the EXIF if it helps at all

    File Name IMG_2427.JPG
    Camera Model Canon EOS 40D
    Firmware Firmware Version 1.1.1
    Shooting Date/Time 05/29/09 20:44:01
    Owner's Name Jamie Rowlands
    Shooting Mode Shutter-Priority AE
    Tv( Shutter Speed ) 1/800
    Av( Aperture Value ) 1.8
    Metering Mode Center-Weighted Average Metering
    Exposure Compensation 0
    ISO Speed 800
    Lens EF50mm f/1.8 II
    Focal Length 50.0mm
    Image Size 3888x2592
    Image Quality Fine
    Flash Off
    White Balance Mode Auto
    AF Mode One-Shot AF
    Picture Style Standard
    Sharpness 3
    Contrast 0
    Saturation 0
    Color tone 0
    Color Space sRGB
    Long exposure noise reduction 0:Off
    High ISO speed noise reduction 0:Off
    Highlight tone priority 0:Disable
    File Size 4443KB
    Dust Delete Data No
    Drive Mode High-speed continuous shooting
     
  5. Josh66

    Josh66 Been spending a lot of time on here!

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    What mode were you shooting in?

    I don't have a 40D, but usually some of the settings don't work in any of the auto modes. (For example, I don't think it will let you shoot RAW in any of the auto modes.)

    I agree that it looks more like 3 fps than 6...
     
  6. JamieR

    JamieR TPF Noob!

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    I was shooting in Shutter Priority
     
  7. Josh66

    Josh66 Been spending a lot of time on here!

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    OK, exif says you were in Shutter Priority...

    Since the exif shows seconds too for the shooting time, you could do a little test to see what your true fps is. Continuously shoot for maybe 10 seconds, you'll be able to figure out the fps from that.

    frames captured (?) / Elapsed time (10 seconds) = fps.

    edit
    I guess you wouldn't even have to upload to figure that out. Use a stopwatch, and then count how many frames you got on the LCD review.
     
  8. JamieR

    JamieR TPF Noob!

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    I just did the test, for 10.214 seconds, and i took 71 photos in that time.

    I just don't get it, something must be affecting it.
     
  9. Clawed

    Clawed TPF Noob!

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    <comment removed because I did not see that you took it in hi-speed continuous> :)
     
  10. Josh66

    Josh66 Been spending a lot of time on here!

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    That is 6.95 frames per second (I'm sure you figured that out already...).

    Maybe the first sequence really only took half a second when you thought it was a full second? (Did you actually time it, or is it an estimate?)

    (Maybe your dog is a lot faster than she looks.)
     
    Last edited: May 29, 2009
  11. bramflakes

    bramflakes TPF Noob!

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    how fast is your cf card? doesn't this affect the speed at which your camera can shoot?

    someone correct me on this, if i'm wrong...it's highly possible...i've been wrong a couple of times in my life.
     
  12. JamieR

    JamieR TPF Noob!

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    I'm not sure how fast it is, it's a Sandisk Ultra II. I don't think it's the memory card, if you look at the above posts, i did a test and it worked out at 6.5fps.

    I'm just going to put it down to my timing being inaccurate.
     

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