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Astrotrac Astrophotography with DSLR

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#1 Charlie Hein

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Posted 21 April 2013 - 11:12 AM

Astrotrac Astrophotography with DSLR

by Erwin Matys and Karoline Mrazek

#2 stevecoe

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Posted 22 April 2013 - 02:26 AM

Greetings;

A very good introduction to a fine device. I have had mine for 2 years and it does a good job of tracking. Once I got it on the pole accurately it consistently tracked with lenses up to 135mm with no trouble. I have not gotten to the place where I want to fiddle with stacking images, but that day may come.

I also use a Canon 350D and Tacumar lenses with Pentax thread. I like the ease of focus with a lens that has a hard stop at the infinity setting.

I put some red tape over the bothersome LED's and lowered their brightness so that they would not effect the image. I don't like the fact that astronomers would manufacture a device with bright lights on it, but that is my only complaint.

Thank you for a fine article;
Steve Coe

#3 Moey

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Posted 30 April 2013 - 12:23 AM

Excellent article thanks for that Erwin. Some useful tips there.

#4 Michael Morris

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Posted 01 May 2013 - 06:58 AM

Great article, thanks.
The article espouses the virtues of a precisely aligned reticle in your polarscope. Here's a great video on aligning the reticle on a polarscope that I found really useful.
https://www.youtube....h?v=BS43vH_sDbg






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