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FORUMS Photo Sharing & Discussion Astronomy & Celestial 
Thread started 05 Feb 2011 (Saturday) 14:27
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Meade ETX90

 
the ­ jimmy
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Feb 05, 2011 14:27 |  #1

Anyone own this scope that would like to review it? Looking for your personal experience with this model, I know I can find reviews on the net, just want some personal feedback.

Thanks




  
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Feb 05, 2011 18:02 |  #2

the jimmy wrote in post #11782988 (external link)
Anyone own this scope that would like to review it? Looking for your personal experience with this model, I know I can find reviews on the net, just want some personal feedback.

Thanks

What are you hoping to do with it? Viewing, imaging Lunar/planetary or deep sky?


Steve
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Feb 05, 2011 18:34 |  #3

Nighthound wrote in post #11784122 (external link)
What are you hoping to do with it? Viewing, imaging Lunar/planetary or deep sky?

I found what seemed to be a good price on a used one, I would turn your question around and say, what is it's strong points, what can I do with it?

That's also why I hoped to find someone who owned one




  
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Feb 05, 2011 19:15 |  #4

A good friend owned one but I have not. This Maksutov-Cassegrain would be a nice viewing scope but have limited photographic application. It's optically slow (nearly f/15) so if you plan possible long exposures then it's not a good choice. That combined with a poor tracking platform make deep sky imaging a stretch. The focal length of 1250 puts it at the low end for planetary imaging. Focal ratio isn't as important for planetary nor is very long exposure so it would work fine for both planetary and lunar but for planets you'd likely need to rig some extra magnification and that might get tricky as far as hardware goes. The fork mount will cause issues for imaging objects high in the sky as well, there's not enough clearance so your camera will hit the mount.

With all that said it's a very nice viewing telescope if imaging isn't part of your plan.


Steve
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Feb 05, 2011 19:38 |  #5

Nighthound wrote in post #11784528 (external link)
A good friend owned one but I have not. This Maksutov-Cassegrain would be a nice viewing scope but have limited photographic application. It's optically slow (nearly f/15) so if you plan possible long exposures then it's not a good choice. That combined with a poor tracking platform make deep sky imaging a stretch. The focal length of 1250 puts it at the low end for planetary imaging. Focal ratio isn't as important for planetary nor is very long exposure so it would work fine for both planetary and lunar but for planets you'd likely need to rig some extra magnification and that might get tricky as far as hardware goes. The fork mount will cause issues for imaging objects high in the sky as well, there's not enough clearance so your camera will hit the mount.

With all that said it's a very nice viewing telescope if imaging isn't part of your plan.

Thank you Steve, I think I'll lay off this one, I do like to view and photograph thru optical devices.




  
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Meade ETX90
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