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Thread: Vela One LED flash

  1. #1
    Flashaholic* monkeyboy's Avatar
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    Default Vela One LED flash

    http://www.dpreview.com/articles/548...al-hotshoe-gun

    This is an interesting Kickstarter project. It's an LED flashgun that produces 1M lumens for 1/2,000,000s. Guide number is 1.5m at ISO100 which is extremely weak, but they claim that the peak lumen output is higher than a regular flashgun (which I'm not so sure about), and the short duration makes it better for freezing motion.

  2. #2
    Flashaholic* Echo63's Avatar
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    Default Re: Vela One LED flash

    That is really low powered, 1.5m guide number
    this looks like a really specialised "flash" unit for freezing motion only, it doesnt have anywhere near the power required to do anything useful in anything but a blacked out room.

    You might get f4@800iso with the unit a metre from the subject, of course working in close, with bullets hitting stuff, You dont need all that much power, and this will be a lot safer than the air gap high speed flash units typically used (with massive banks of really high voltage capacitors)
    flashlight collector by day
    flashlight user by night

  3. #3
    Flashaholic* monkeyboy's Avatar
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    Default Re: Vela One LED flash

    The final production model should be more powerful. According to a poster on DPReview, the manufacturers say that the duration can easily be increased e.g. 10 times longer duration will give you nearly 10 times the output, but they need to do long term testing to determine how the LEDs will hold up.

    You'd probably need 1000 times the output to compete with a typical flashgun though.

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