|
Thanks Bob, I made my tracker by converting an old cheap celestron mount ( from astromaster EQ130) I had at home and not used for a long time. It had a DC motor drive on the RA axis that was ok for visual but hopeless for imaging. I attached a cheap stepper motor instead ( $10 from Jaycar) and control it with an arduino and motor shield. I had all these lying about and so it cost me nothing. I'll try and put a photo in the DIY section in a few days. It tracks surprising well for 30sec with a 50mm lens, Cheers, Rob
Ps I put another comet atlas photo in the beginner's section that I think is bit better and is 18mins of 5,7, and 10 sec exposures.
|