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Imaging

Articles about taking photos and recording videos about celestial objects.

Article Index for imaging in space.



High Definition Broadcasting Experiments

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As you may know I have been flirting with live broadcasting on Ustream for a while now. While it is a great free service I was not particularly happy about the default webcam stream, which appears to be very low resolution, not much higher than 320x240. Ustream offers high quality streaming using their browser plugin and even high definition-like using the Flash Media Live Encoder from Adobe. Unfortunately, neither of these is available for anything else than Windows.

I wanted to try so much that I even tried the Flash Media Live Encoder under Vista. Well, it was a total fail... My computer froze after broadcasting a few seconds even at VGA-like resolutions. I think I spent a whole Sunday trying various configurations and setting but no luck. Slow computer? Buggy software? Probably both.

Few days ago I learned that Adobe is now in the process of making a Mac version of Flash Media Live Encoder. Hurray! In fact, it is already available for selected beta testers but no timeline for public release. Fortunately, I was able to find a kind soul who has shared the beta package for Mac with the rest of the world (thanks Google search for finding me this) and so I got the opportunity to become an unofficial beta tester.

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More Moon with a webcam

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Here is my latest attempt in my Moon with a Webcam series, though this time I used a very cheap camcorder instead of a webcam. Still plenty of room for improvement.

I used a Meade ETX-90 telescope f=1250mm with 26mm eyepiece → 48X magnification. This time I was holding the camera by hand but I have a plan for improving that part.

 

The Moon on Blue Sky

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I caught the moon tonight right after sunset while the sky was still blue. Here is a video I recorded using my JVC Everio GZ-MG130E video camera. I didn't use any telescope, just the camera zoom. It can do up to 32x optical zoom and something like 800x digital zoom. The highest zoom on this video is around 40x

Recorded: 6 April 2009 around 20:00 CET – Place: Copenhagen, Denmark (10th floor)

 

The Moon with a Webcam

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I am working on a setup where I want to mount a cheap webcam onto my Meade ETX-90 telescope for terrestrial observations. While I was working on the setup the other night I looked out the window and saw the Moon behind a tree. Without thinking too much I pointed the telescope towards the Moon and recorded this video.


As for the bad quality keep in mind that:
  • it was recorded through a double-glas window (which was dirty)
  • the Moon was behind a tree
  • it was recorded with a webcam