[Space] Images from Spacebridge Epsilon

Blake Barrett Blake at BlakeBarrett.net
Wed Jul 7 15:54:28 PDT 2010


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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.noisebridge.net/pipermail/space/attachments/20100707/70b71eb6/attachment.htm 


More information about the Space mailing list