Topic: Photographing the night sky with a digital camera Pages that link to <a href="https://ozoneasylum.com/backlink?for=15155" title="Pages that link to Topic: Photographing the night sky with a digital camera" rel="nofollow" >Topic: Photographing the night sky with a digital camera\

 
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Spike Page
Obsessive-Compulsive (I) Inmate

From: Atlanta, Georgia, U.S.A.
Insane since: Jan 2004

IP logged posted posted 01-25-2004 18:41 Edit Quote

I have an Olympus Camedia C-5000 ZOOM and am just really starting to explore all it can do (purchased it about a month ago)

It has a low-light feature, as well as the ASL feature which lets me do manual settings, but I'm having a hard time getting a good picture of the night sky where the stars can be seen clearly.

My best attempt had to be tweaked in the photo-editor, raising the contrast, raising gamma, and cleaning up noise. IS there a better way, or can anybody give me any tips on settings or editing?


(I was actually surprised the colours showed the way they did. I assume it's to do with the types of stars but I may be wrong. I was really hoping for a more "natural" look.)



[This message has been edited by Spike Page (edited 01-25-2004).]

asptamer
Paranoid (IV) Inmate

From: The Lair
Insane since: Apr 2003

IP logged posted posted 01-26-2004 03:38 Edit Quote

Im guessing the only way to improve your sensitivity issue is to use higher ISO setting (means more noise), and a longer exposure time. If u leave the shutter open long enough u'll see the stars, but theres a drawback - if u leave it open for too long the stars will appear as traces rather than dots, due to the earth's rotation of course. The solution to that one is get yourself some device which would follow the sky, like they do in observatory : )

Taobaybee
Maniac (V) Inmate

From: The Pool Of Life
Insane since: Feb 2003

IP logged posted posted 01-26-2004 05:48 Edit Quote

I Googled this for you Spike Page SpaceWatch
I've bookmarked it myself.

:::tao:::

mobrul
Bipolar (III) Inmate

From:
Insane since: Aug 2000

IP logged posted posted 01-26-2004 16:47 Edit Quote

The other problem one often has with digital cameras and the night sky is a heat issue.
On a film SLR camera, you can leave the shutter open all night long. No problem. If you have a properly mechanized tripod, you can even get very clear pictures of all sorts of space objects.

The CCDs in a digital cameral aren't made to stay open that long. They build heat very fast and have no sufficient way to dissipate that heat. Heat in CCDs = noise in image.
There are specialized digital cameras made specifically for astro-photography, but they are very expensive. Most digital cameras just aren't made for the job.

oberpriller
Obsessive-Compulsive (I) Inmate

From: Austin, Tx, USA
Insane since: Feb 2004

IP logged posted posted 02-13-2004 06:37 Edit Quote

I read a tutorial where you can eliminate noise by taking a picture with the lense cap on either directly before taking a picture of the sky or directly after. Either way, the noise should be close to the same in both pictures and can then be canceled in photoshop leaving only the stars in the picture.

asptamer
Paranoid (IV) Inmate

From: The Lair
Insane since: Apr 2003

IP logged posted posted 02-13-2004 22:46 Edit Quote

any chance of us getting a link to that tutorial?



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