CHDK in the stratosphere - Creative Uses of CHDK - CHDK Forum

CHDK in the stratosphere

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Offline fbonomi

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CHDK in the stratosphere
« on: 02 / January / 2009, 20:40:41 »
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« Last Edit: 30 / April / 2009, 19:27:21 by fbonomi »

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Offline fe50

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Re: CHDK in the stratosphere
« Reply #1 on: 02 / January / 2009, 21:37:04 »
WOW - amazing !
This is the 2nd CHDK that worked above ~ 33 km ! (as the HAPS-1 Pegasus HAB Project, A550 - Script both stills and video?).
Since these images are top class, the panorama will be bombastic, i'm sure...WOW !

Re: CHDK in the stratosphere
« Reply #2 on: 02 / January / 2009, 22:03:00 »
Outstanding!!!

I took my SD1100 up to a tiny 500 feet (about 1/2% of your mission) today.  I was feeling quite sassy until I saw your photos.   I used a glider and it is not likely to get over 1000 feet.   

Down in Florida, hey?  It would be TRULY outstanding to be up there during a shuttle launch and get photos of that.

I'm looking forward to seeing your script if possible.  Being a newby, I could learn a lot from it. 

Great job!!!
Was: SD1100 IS, Autobuild, V1.01a, dunked in ocean
Next: SD990 IS, Autobuild, used to build sand castles with
Waiting to die: SX230

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Offline reyalp

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Re: CHDK in the stratosphere
« Reply #3 on: 02 / January / 2009, 22:24:58 »
Awesome pics, great work :D
Don't forget what the H stands for.


Re: CHDK in the stratosphere
« Reply #4 on: 03 / January / 2009, 01:06:21 »
Outstanding

Re: CHDK in the stratosphere
« Reply #5 on: 03 / January / 2009, 05:47:26 »
Very, very interesting !

Great to see a practical use of sensor temperature and ISO override.

I am almost tempted to add to SDM   :)

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Offline fudgey

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Re: CHDK in the stratosphere
« Reply #6 on: 03 / January / 2009, 07:04:42 »

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Offline yvesson

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Re: CHDK in the stratosphere
« Reply #7 on: 03 / January / 2009, 07:55:48 »


Re: CHDK in the stratosphere
« Reply #8 on: 03 / January / 2009, 08:09:18 »
maybe there's even other things in the rig keeping the camera warm? And it's so much colder that one just can't expect extrapolate linearly that far with confidence.

There is.   If you look here http://dcshrum.ais.fsu.edu/images/IMG_0022.jpg you can see we have a voltage regulator attached to a heat sync.  That was a result of having a 14 volt li-poly battery and a 12 volt motherboard.  The heat sync does get pretty hot.  I never measured it but I'd say after an hour you do not want to touch it.

Curious, has anyone ever wired an external battery?  It would be more efficient to use a voltage regulator off the larger battery.  Actually now that I think about it you could just wire a 5 volt regulator to the USB cable.  But then you would not be able to send signals to the camera.  I believe the camera will run off just USB power. 
« Last Edit: 03 / January / 2009, 08:11:28 by dcshrum »

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Offline fe50

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Re: CHDK in the stratosphere
« Reply #9 on: 03 / January / 2009, 08:10:11 »

 

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