[Space] Images from Spacebridge Epsilon

Blake Barrett Blake at BlakeBarrett.net
Wed Jul 7 17:22:04 PDT 2010


Any of the Canon G-series
(*http://tinyurl.com/27893kb*<%28http://tinyurl.com/27893kb>)
is supposed to have the same *sized* sensor as the crop-sensor DSLRs.
The camera I've been coveting for this project is the Sigma DP2s (*
http://tinyurl.com/Sigma-DP2s*). The sigma has a built in intervalometer
function in the stock firmware, and has a super awesome sensor that is
supposed to work well in low-light situations (
http://www.sigma-dp.com/DP2s/technology-sensorsize.html).
Unfortunately the future of my employment status leaves me a bit
trepidatious to spend much money on a new camera.

On Wed, Jul 7, 2010 at 4:39 PM, Charles Collicutt
<charles at collicutt.co.uk>wrote:

> I have a Fujifilm FinePix F30, which was supposed to be one of the better
> compact cameras for low-light photography in its day but is getting on a bit
> now. However, so far I have failed to find any hacked firmware for it.
>
> One of the reasons the early FinePix cameras (especially the F30 and F31)
> had better low-light performance than their competitors was that Fuji
> resisted the urge to increase the number of pixels. The F30 has only 6MP. I
> believe more recent Fujifilm compacts have double the pixels but they
> automatically switch to a lower resolution in low light.
>
> Are there any Canon cameras with larger CCDs or lower resolution that
> Spacebridge could use?
>
>
>
> On 7 Jul 2010, at 15:54, Blake Barrett wrote:
>
>  Jonathan,
>>    I setup the cameras. They both auto-ISO'ed to 1600 which ended up
>> looking like crap.
>> The SD1100IS was the horizontal camera that took the super-grainy images,
>> the vertical images taken by the A700 were less grainy, but still didn't get
>> much visual definition. I like your idea of digitally removing the noise.
>> I think if we programatically restrict to a maximum shutter speed of 1/4
>> we can get some acceptable images. I also think that we can get a lot better
>> hi-ISO performance if we freeze the hell out of the cameras. Maybe a payload
>> with two dedicated thermal chambers; one warm for the location/communication
>> electronics, one cold for imaging apparati. The guys at NASA's re-entry
>> watcher project (I can never remember their project's name) were saying
>> something about there being a linear relationship between something like
>> every 10º below 0 you can double the ISO, or something to that effect.
>>    I think the best thing would be just to get a camera with a better
>> sensor.
>>
>> Blake
>>
>> On Wed, Jul 7, 2010 at 3:24 PM, Jonathan Moore <moore at eds.org> wrote:
>> On Sat, Jul 3, 2010 at 1:04 AM, Blake Barrett <Blake at blakebarrett.net>
>> wrote:
>> >
>> > It looks like we have some more work to do to get good night shots.
>>
>> So who set up the camera? I there will certainty be some challenges
>> and it is possible what we will need to do is fly a better camera. I
>> would say we should set it up manually with a shutter of at least
>> 1/125 and the highest ISO that is low noise. ( We could look at tools
>> that can build a noise profile for the CCD and remove it later too. )
>> As for the aperture it might be that we can get away with a larger one
>> I will try and run some experiments at shooting the sky with a large
>> aperture.
>>
>> -Jonathan
>>
>>
>>
>> --
>> Blake
>> blake at blakebarrett.net
>> 1 559 455 7855
>> _______________________________________________
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>
>
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-- 
Blake
blake at blakebarrett.net
1 559 455 7855
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