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Thread: SB900 wont fire off

  1. #1

    Default SB900 wont fire off

    Hi peeps

    I shot with my D700 and SB900, set it to TTL mode, but sometimes the SB900 wont fire off. May I know if there is anything wrong ?

  2. #2

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    Quote Originally Posted by rachy588
    Hi peeps

    I shot with my D700 and SB900, set it to TTL mode, but sometimes the SB900 wont fire off. May I know if there is anything wrong ?
    Check the pins, are the pins in good condition?

  3. #3

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    How to check if they are in good condition?

  4. #4
    Member Irvine's Avatar
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    Default Re: SB900 wont fire off

    Quote Originally Posted by rachy588 View Post
    How to check if they are in good condition?
    look at the contact pins n see if they r damaged externally.

    btw, from wad i had found online, it may be due to a loose hot shoe of ur d700

    http://forums.dpreview.com/forums/re...7&changemode=1
    http://forums.dpreview.com/forums/re...ssage=36473087

    at the mean time, try the flash on other bodies if u have spare ones to see if it has the same problem.
    Last edited by Irvine; 5th October 2011 at 10:09 PM.
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  5. #5
    Moderator ziploc's Avatar
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    Default Re: SB900 wont fire off

    Quote Originally Posted by rachy588 View Post
    Hi peeps

    I shot with my D700 and SB900, set it to TTL mode, but sometimes the SB900 wont fire off. May I know if there is anything wrong ?
    Sorry for asking the obvious, but is the flash ready (the red ready light on) when you fire the next shot?

  6. #6

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    Yeah. The problem just happen suddenly and intermittently. It works fine most of the time but it won't fire off sometimes

  7. #7
    Member Akira Fudou's Avatar
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    Default Re: SB900 wont fire off

    Must be low on batt... more time to recharge the flash for the next shot. SB900 has an extra batt pack right?

  8. #8

    Default Re: SB900 wont fire off

    this is a sign of low battery ? I only took 200plus shots and I'm using fully charged eneloop batteries

  9. #9
    Moderator ziploc's Avatar
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    Default Re: SB900 wont fire off

    What about the temperature displayed on the LCD? Did you hear any warning beep from the flash when pressing the shutter release? SB900 can overheat when fired at full power repeatedly. Once the temperature is above the thermal cut-off threshold it would not fire.

  10. #10

    Default Re: SB900 wont fire off

    hm.. everytime i check its below half on the meter and i didn't hear any beeping sound.

  11. #11

    Default Re: SB900 wont fire off

    Quote Originally Posted by rachy588 View Post
    hm.. everytime i check its below half on the meter and i didn't hear any beeping sound.
    Does pressing on the test button fire off ?
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  12. #12

    Default Re: SB900 wont fire off

    yup. it fire off when i press it. Im guessing theres something wrong with my hotshoe

  13. #13
    Moderator ziploc's Avatar
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    Default Re: SB900 wont fire off

    Quote Originally Posted by rachy588 View Post
    yup. it fire off when i press it. Im guessing theres something wrong with my hotshoe
    Yup sounds like a hotshoe contact problem. Try cleaning both the flash's contact pins and the hotshoe's contact pads.

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