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HELP PLEASE!!! My Interfit EX-150's won't work at any shutter speed faster than 1...

Forums > Lighting > HELP PLEASE!!! My Interfit EX-150's won't work at any shutter speed faster than 180th Second!??

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    Lance
    5
    United Kingdom
    30 Aug 2008 - 6:59 PM
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    Can anyone tell me how I can solve this problem?

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    30 Aug 2008 - 6:59 PM

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    Mike Otley
    Mike Otley (e2 Member)
    8
    17325 forum postsMike Otley vcard Norway8 Constructive Critique Points
    30 Aug 2008 - 7:08 PM
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    What camera are you using?

    Last Modified By Mike Otley at 30 Aug 2008 - 7:08 PM
    Snapper
    30 Aug 2008 - 8:06 PM
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    If it is the 400D that you used for your last couple of shots, I think the max synch speed is 1/200th, so it seems to be working properly.

    "The Rebel XTi/400D has a top shutter speed of 1/4,000 and a standard top flash sync speed of 1/200 (plus full TTL flash at up to 1/8000 with a compatible EX-series Speedlite set to High Speed Sync; the built-in popup flash is also capable of High Speed Sync operation). It's not possible to cheat the flash sync well above the standard top flash sync speed with non-dedicated strobes."

    Last Modified By Snapper at 30 Aug 2008 - 8:08 PM
    Lance
    5
    United Kingdom
    30 Aug 2008 - 8:06 PM
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    A Canon EOS 400d and a pentax k20d

    Lance
    5
    United Kingdom
    30 Aug 2008 - 8:11 PM
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    Sorry!Smile

    Snapper
    30 Aug 2008 - 9:02 PM
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    No probs. Smile

    peter_davey
    30 Aug 2008 - 11:53 PM
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    so have you got it working now then ???

    Moist studio work I do is at 125th or 160th - what are you looking at shooting

    peter

    The max flash shutter speed (which will be in your camera manual) is the max speed that will safely work with a dedicated hotshoe flashgun.

    Generally, it's much safer to synch studio flash heads at least 1 click lower, and often when used with cheap radio triggers it needs to be much lower than that.

    And why do you need a fast shutter speed in the studio anyway? The shutter speed has no measurable effect on the exposure, at any normal shutter speed under normal studio conditions.

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