I pointed my 60d at Cassiopeia f4 @30sec
Heres my curved rod tracker
still working on my Post processing
Dec 01, 2014 19:51 | #1 I pointed my 60d at Cassiopeia f4 @30sec Heres my curved rod tracker still working on my Post processing BJ
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EchoShotz Senior Member 315 posts Likes: 32 Joined Feb 2014 Location: Knoxville, TN More info | Dec 01, 2014 20:18 | #2 I need to make myself one of these.. How difficult (if at all) was it to make? 5D Mark III, 70-200 f/2.8L, 24-70 f/2.8 L, YN560 (2x)
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Dec 01, 2014 22:32 | #3 You did a good job building but either your a tab-bit slow or fast cause I see some trailing in your stars .
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Dec 02, 2014 06:28 | #4 Thanks , I'm still not sure on my timing the arduino Program that is running the stepper motor. Is one I found on the web my txpilot. This is one of the very first shots set for 30 sec. I did some others shots at 59 sec. Too. I noticed the elongated stars on the edge of pic but not so much in the center of the picture. BJ
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The reason the stars at the edge are trailing is because of the area you had the camera pointing and the lens size you used . Your not far off the Polaris star so trailing is the least amount the closer you get to Polaris , while the farther away the longer the trailing . I can see the Andromeda Galaxie and the Double Cluster and the size says you used a WA lens right ?
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Yes ,shot with my kit lens 18-200. BJ
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Echo it wasnt hard to make at all. Rounding up parts, figuring out the arduino and finding a sketch to control the stepper motor was the Tuffest. I got lucky and found the Meade field tripod for 60$ On fleabay BJ
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Dec 09, 2014 23:14 | #8 Looks good. If you have your sidereal movements precise then the only thing holding you back from longer exposures will be polar alignment accuracy. The ioptron polar scope uses a pretty clear polar clock which is easy to align and could be mounted in your gun scopes cradle with minor adjustments. Another alternative is drift alignment. Processing is a whole new animal Wes
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