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  1. #1
    Join Date
    Mar 2009
    Posts
    37

    Question Cheat High Speed Sync

    Today I tryed to cheat High Speed Sync, but the problem is that my camera nikon D90 is not alowing me to set higher shutter speed than 1/200s when the FP high speed is set to off.
    I want to try set higher shutter speeds than 1/200s with FP set to off because I need power from flash and the underexposed part of a frame doesent bother me ...

    So If Im right I cannot cheat sync speed if Im using popup flash to trigger my SB900 remotely ...

    If I want to cheat sync speed I have to use wireles radio trigers to do the job ?

    Am I right ?

    Or do I have to use third party flash etc ?

    Thanks !

  2. #2
    Join Date
    Dec 2006
    Location
    Melbourne, Australia
    Posts
    793
    If you're using the external flash on camera, the only way to do it is to use something like tape to cover the contacts that deal with TTL flash information so it can't communicate with the camera to know when you go over 1/200. Do a search on which contacts to cover.

    The other method is wireless radio triggers, or wired sync cords, but in that case you'd also have to tape the contacts if it's a nikon branded sync cord.
    Nikon D700 | SB600 | SB-80DX | 2xSB-26 | 18-35 f/3.5-4.5 | 24-85 f/3.5-4.5G | 50 f/1.4 G | 105 f/2.8 VR | 70-300 f/4.5-5.6 VR

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  3. #3
    Join Date
    Mar 2009
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    37
    Thank you !

  4. #4
    Join Date
    Jan 2007
    Location
    New York, NY
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    483
    If you're using CLS, you'd be able to shooter the fastest shutter speed of the D90. Just turn Auto FP.
    Nikon D700 | Nikon D90 | 14-24mm 2.8 | 24-70mm 2.8 | 35mm 1.8 | 50mm 1.4 | 85mm 1.4 | 105mm 2.8 Micro | 70-300mm VR | SB-800s | Tiffen UV Filter, ND and Polarizer set

    "You see, Netherlands is this make-believe place where Peter Pan and Tinkerbell come from."
    Joey Tribbiani


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  5. #5
    Join Date
    Mar 2007
    Location
    Bay Area, California
    Posts
    1,546
    Quote Originally Posted by achuang View Post
    If you're using the external flash on camera, the only way to do it is to use something like tape to cover the contacts that deal with TTL flash information so it can't communicate with the camera to know when you go over 1/200. Do a search on which contacts to cover.

    The other method is wireless radio triggers, or wired sync cords, but in that case you'd also have to tape the contacts if it's a nikon branded sync cord.
    Wait your saying simply by covering a contact on the hot shoe we can sync at speeds higher than 1/200 wutg wireless triggers!?
    Nikon D90, D40 Tamron 17-50mm f/2.8 | Sigma 50-150mm f/2.8 | Nikkor 35mm f/1.8
    Vertical Grip, SB-600, SB-24, Sunpak 433D, Metz 40AF-4N, Alienbees CyberSync Triggers

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  6. #6
    Join Date
    Mar 2009
    Posts
    37
    Yes, I know that you can shoot higher than 1/200 with Auto FP on, but you have to realize that flash power is reduced alot because flash has to fire multiple times to expose whole sensor properly.
    Sometimes you just need full power of flash and fast shutter speeds witch are more than 1/200s and you only can do it with cheating high sync speed ... The only thing you have to watch here is that botom of the picture is underexposed and that can be sometimes very useful.

  7. #7
    Join Date
    Dec 2006
    Location
    Melbourne, Australia
    Posts
    793
    Quote Originally Posted by r3g View Post
    Wait your saying simply by covering a contact on the hot shoe we can sync at speeds higher than 1/200 wutg wireless triggers!?
    That is correct. If you do a search on strobist you'll be able to find what I'm talking about. Obviously there is a limit to how fast you can go, and it all depends on what flash power you're shooting at also as flash duration increases with flash power. The flash sync speed of my old D70s was 1/500, but when I used wireless radio flash triggers I could sync up to 1/800 if the flash power wasn't too high. The sync speeds may go even higher if using wired flash connections as they are faster than radio triggers with slight delays in their signals.
    Nikon D700 | SB600 | SB-80DX | 2xSB-26 | 18-35 f/3.5-4.5 | 24-85 f/3.5-4.5G | 50 f/1.4 G | 105 f/2.8 VR | 70-300 f/4.5-5.6 VR

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  8. #8
    Join Date
    Mar 2009
    Posts
    37
    Hmm, I can't find noting about taping down contacts to cheat sync speed.

  9. #9
    Join Date
    Dec 2006
    Location
    Melbourne, Australia
    Posts
    793
    I don't know if strobist will tell you exactly which contacts to tape down, however this is the article I was referring to. The amount above the sync speed does depend on your camera also.

    http://strobist.blogspot.com/2007/05...peed-pt-1.html
    Nikon D700 | SB600 | SB-80DX | 2xSB-26 | 18-35 f/3.5-4.5 | 24-85 f/3.5-4.5G | 50 f/1.4 G | 105 f/2.8 VR | 70-300 f/4.5-5.6 VR

    flickr

  10. #10
    Join Date
    Mar 2009
    Posts
    37
    Thanks, I read the comments and found that you have to tape down all conectors and leave only middle one untaped .
    Ill try next time if this really works.

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