WTF more NASA Photo Problems?

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~~NoMad~~ - 30 Oct 2007 14:30 GMT

Again I'm watching real-time NASA TV while they try to photograph the 'good'
SARG. This time it appears the flash unit on the DSLR wasn't working. He
even pointed the flash unit right into his face and could see no flash.

Life is a bitch with a DSLR in space!

NM

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Don Stauffer in Minnesota - 30 Oct 2007 14:59 GMT

On Oct 30, 7:30 am, "~~NoMad~~" <understanding.eng...@gmail.com>
wrote:

> Again I'm watching real-time NASA TV while they try to photograph the 'good'
> SARG. This time it appears the flash unit on the DSLR wasn't working. He
[quoted text clipped - 3 lines]
>
> NM

Especially with flash units. They use high voltage, and high voltage
is a problem in space or at high altitude. In true outer space, the
vacuum is an insulator. But if any residual gas remains the gas
ionizes easily and shorts the power supply. Venting of high voltage
electronics is a really tricky design problem. If the flash units were
not designed from scratch as space-qualified, I can readily see
problems.

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~~NoMad~~ - 30 Oct 2007 15:28 GMT

> On Oct 30, 7:30 am, "~~NoMad~~" <understanding.eng...@gmail.com>
> wrote:
[quoted text clipped - 14 lines]
> not designed from scratch as space-qualified, I can readily see
> problems.

Yes, I understand. This flash unit looks like its in an underwater housing
and is probably pressurized with dry nitrogen or something. I heard him say
he pushed in on the sportfinder and then the flash started working. WTF?

NM

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~~NoMad~~ - 30 Oct 2007 18:27 GMT

> Again I'm watching real-time NASA TV while they try to photograph the
> 'good' SARG. This time it appears the flash unit on the DSLR wasn't
[quoted text clipped - 4 lines]
>
> NM

Gezze: Now I hear that they forgot to bring the flash camera back into the
airlock. Left it outside. All pictures of SARG are still in the camera.

GASP

NM

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