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Thread: High-Speed Sync for Speed Graphic

  1. #11

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    Re: High-Speed Sync for Speed Graphic

    Quote Originally Posted by Dan Fromm View Post
    OP, why must you use your Speed's FPS?
    I'm using an Aero-Ektar lens without a shutter.

  2. #12

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    Re: High-Speed Sync for Speed Graphic

    Quote Originally Posted by AeroK View Post
    I'm using an Aero-Ektar lens without a shutter.
    There are large Packards, you could mount one in front of the lens. Is 1/25 too slow given ambient lighting?

    Re too slow given ambient, one way of dealing with that is to use slower film.

  3. #13

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    Sep 2010
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    595

    Re: High-Speed Sync for Speed Graphic

    Just use a leaf shutter with X sync. Enjoy the focal plane shutter with barrel lenses. If you are determined to use the shutterless Aero Ektar with electronic flash, a front mounted Packard as has already been suggested is the best approach.

  4. #14
    Tin Can's Avatar
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    Dec 2011
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    14,718

    Re: High-Speed Sync for Speed Graphic

    Also setting that combo up. Actually mine is ready but soon changing lens mount

    I am sure my 1951 Speed has curtain sync contacts on only one slit as I thought they were NG some years ago

    I will be checking that soon






    Quote Originally Posted by AeroK View Post
    I'm using an Aero-Ektar lens without a shutter.
    sin eater

  5. #15

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    Re: High-Speed Sync for Speed Graphic

    Quote Originally Posted by Tin Can View Post
    Don't know OP's plans, need more input
    Thanks for the links to Packard shutters. Might work. Need a bit more studying.

    I'm using an Aero-Ektar 178mm f/2.5 barrel lens. Not mounted in a shutter.

  6. #16

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    Re: High-Speed Sync for Speed Graphic

    Quote Originally Posted by Dan Fromm View Post
    There are large Packards, you could mount one in front of the lens. Is 1/25 too slow given ambient lighting? Re too slow given ambient, one way of dealing with that is to use slower film.
    That might work, Dan. 1/25 is probably ok. I'd like the option of faster speeds to manage the ambient light, but 1/25 is better than nothing at all!

  7. #17

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    Dec 2019
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    Re: High-Speed Sync for Speed Graphic

    Quote Originally Posted by Oren Grad View Post
    I too would like to hear about it if someone has found a way to make it work.
    I need to dig into the wiring of HSS strobes. It's probably not something as simple as a contact closure, but it might be possible to control it with an Arduino or something like that. I fear you're right, Oren -- that HSS won't last long enough for the relatively slow shutter speeds of the focal-plane shutter.

  8. #18

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    Re: High-Speed Sync for Speed Graphic

    The Pacemaker Graphic and FP bulbs was only for fast shutter speed: 1/250 and higher.

  9. #19
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    Re: High-Speed Sync for Speed Graphic

    Quote Originally Posted by AeroK View Post
    I need to dig into the wiring of HSS strobes. It's probably not something as simple as a contact closure...
    It might be. If the HSS setting is made on the flash rather than from the camera's menu, and the exposure mode is set for manual or for AE controlled via on-flash sensor rather than camera-controlled TTL AE, there might not be anything that needs to be communicated between camera and flash other than sync closing. In theory the duration of the HSS pulse sequence might be customized to different camera bodies via some signal through the dedicated flash contacts, but in practice I suspect that it's a fixed parameter.

  10. #20

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    Re: High-Speed Sync for Speed Graphic

    The ez, old school way is to use bright hot lights, and use any speeds you can meter...

    Steve K

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