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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 09 Mar 2013 (Saturday) 12:09
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Tracking mounts

 
rpmaurer
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Mar 09, 2013 12:09 |  #1

College student-teenager with no money for a nice mount. Just want to toy around with something though :). Honest opinions, are the "barn door" mounts worth playing around with, and say I have a 50mm lens, whats the longest time I should be able to get?

I understand my results will not be the same as a tru guided mount. :(

Thank, Ryan


SX30IS, T3i, 18-55 IS II, 55-250 IS... life is good.

  
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Diane ­ Kauffmds
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Mar 10, 2013 12:25 |  #2

Hi Ryan,

I'm new to the forum, but have been an astronomer for 17 years. It's definitely worth playing with, but you should be able to get some good photos just with a tripod. Assuming you're photographing from a really dark sky, star trails will start to appear after about 30 seconds of exposure. A 50mm lens will show a lot of sky; the wider the field, the longer you can expose without seeing star trails.


Diane Kauffmds ;)

  
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HaroldC3
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Mar 10, 2013 13:26 |  #3

Ryan, I have been doing some research and have come to the conclusion that stacking is where it's at if you don't have the money for a decent mount ($400+). I found this website that will tell you the max shutter speed you can use before you get star trails: http://www.sceneplanne​r.com/tool3.php (external link)

Then here is a good video on taking astrophotos without a tacking mount and stacking them: http://www.youtube.com​/watch?v=e0JSTF8SGi4 (external link)

As soon as I get some time I will be trying this with an 85mm f1.8 lens to see what I get.


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Madweasel
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Mar 10, 2013 18:19 |  #4

You can get very good results from a barndoor tacker - well worth playing around with.


Mark.

  
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MidnightSun
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Mar 11, 2013 17:47 |  #5

Barn door and a 50mm. should give some nice results. Stacking does help to be sure.....Good luck.


Dave
Canon 350D, AE-1, Orion 8" Newt. f/4.9; EQ6 w/ modified motor drive; Orion 70mm f/10 Refractor Guide Scope; Celestron NexImage CCD Imager; Starshoot Autoguider. Orion Electronic Focusers.
Astro Setup / Midnight Sun Astrophotography (external link)

  
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togish1
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Mar 12, 2013 11:47 |  #6

This was done on a budget...100 bucks for the scope from criagslist

and then a few parts that were laying around or are cheap to buy

http://www.youtube.com​/watch?v=l28bMljhs1o (external link)


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Tracking mounts
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