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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 27 Nov 2008 (Thursday) 05:51
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Orion and his hounds... A grand experiment

 
bowtie`
Senior Member
488 posts
Gallery: 26 photos
Likes: 70
Joined Nov 2007
Location: Indiana, USA
     
Nov 27, 2008 05:51 |  #1

Tonight I tried a grand experiment. I found my old dusty Meade 60mm drugstore telescope that the main tube is so bad that it is basically unuseable. My parents meant well many decades ago and it was a starter scope. ANyhow I took a block of wood, drilled and cut a tube diameter on one side, fit a bolt through the middle and attempted to mount the 5D to the main tube directly above the telescope mount. It does not look pretty but it does stay in place with two metal straps. This mount does not have a motor, only two slow-jerky motion manual controls. The added weight of the camera and a 24-70mm does not help either. Anyway I got it halfway balanced and gave Orion and both Canis' a shot with this contraption. The end result is not as good as I hoped but then not a horrible as I thought it might possibly become. A change from my star trails at least for me. Here are two images from this evening. I like the longer exposure for the colors but I can not track well enough to keep good star shapes. The shorter exposure star shapes look better but the colors are definately waning.

First image: Camera Canon 5D, ISO 200, TV 554sec. (9.24 minutes) AV 7.1, Lens 24-70mm @ 40mm, no filters, single exposure, noise reduction on

Second image: Camera Canon 5D, ISO 200, TV 145sec. (2.42 minutes), AV 7.1, Lens 24-70mm @ 32mm, no filers, single exposure, noise reduction on


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Celestron
Cream of the Crop
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Gallery: 1 photo
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Joined Jun 2007
Location: Texas USA
     
Nov 27, 2008 17:32 |  #2

You did a good job for manual guiding a scope thats not motor driven ! Not bad at all on the images and the trailing isn't that bad either . WTG and congratulations !




  
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Adrena1in
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1,703 posts
Joined Aug 2007
Location: Winchester, Hampshire, UK.
     
Nov 28, 2008 05:55 |  #3

I like the first one, but is Canis Minor actually in the shots?


Canon EOS 450D, Sigma 18-200mm, Canon 50mm f/2.5 Macro, 2x TC, Revelation 12" f/5 Dobsonian, Mintron PD2285-EX webcam.

  
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bowtie`
THREAD ­ STARTER
Senior Member
488 posts
Gallery: 26 photos
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Joined Nov 2007
Location: Indiana, USA
     
Nov 28, 2008 08:00 |  #4

Adrena1in wrote in post #6772738 (external link)
I like the first one, but is Canis Minor actually in the shots?

You are correct. I was in error. Canis Minor is farther east. Only one hound in these shots.




  
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Orion and his hounds... A grand experiment
FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
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