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About nightster

  • Rank
    Proto Star
  • Birthday 01/01/70

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  • Gender
  • Interests
    Cooking, BBQing, Movies, All things Geek, AstroPhoto, TerraPhoto, Engineering, Mechanics, Science, StarTrek, Drinking....etc.
  • Location
    Charlotte, NC United States

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  1. Binning and Pixel Scale

    And this is why I asked the question. So much of what we think is true is not necessarily so black and white when we actually make the attempt. I'm not sure my camera can bin2 well, what should I be on the look out concerning this? Are there tell tale signs my sensor isnt good at binning? Can the SNR benefit from bin2 help the slower F9 optics of this RC? I haven't been using darks in the past, just a master Bias built from 250 subs. I made some upgrades to the power delivery system of the rig and I needed an all night test of it's functionality. A full run of all darks 30s-900s seemed like a good way to stress the system hence the 2x2 dark library. To test my understanding: Running bin1 should not change my routine running at this longer FL 1370 vs 480 (all my previous images taken with an 80mm triple.) My specific camera may or may not bin2 well, testing will prove this. SNR increase may help final image but at the expensive of resolution. I suspect there are other variables that could influence the decision like LP, target type/brightness, maybe filter choice. But the pixel scale isn't the deciding factor I thought it was.
  2. Binning and Pixel Scale

    I bought a 6" RC this past spring but didn't get it setup before the summer heat, humidity and insects arrived. Now the rig is ready for the long southern fall and the dry clear skies that are more common. I'm trying to figure if I should bin2 this scope. Specs: 1370 FL, Atik460 w/ 4.54um pixels, No reducer at this time. The OTA is reported to having a .79" resolution ( not sure what that means.) I use AF and OAG if that matters. I calculate a .68pp bin1 and 1.37pp bin2 I read that alot is dependent on seeing. What are the pros and cons of bin2 on this combo? Any processing issues, or just smaller files? I've already built a bin2 Bias and Dark library. Any aquisition issues (sub length, guiding changes, etc)? Will bin2 change how large I can have a final image printed?
  3. I've got the external temp sensors that came with my Moonlite for use with the auto focus and temp compensation. The stepper has a temp sensor integrated but I'm wondering if I should be using the external, say mounted on the OTA somewhere. Not sure. What are the opinions on this?
  4. RC collimation

    I used a standard Cheshire to aid in collimation. Actually, I attached a webcam to the site hole and was able to collimate it while watching a live view on a computer screen using Sharpcap and Mire De Collimation. Made it easy. This will get you close and a Star test is final fine tuning. Image of my diy video collimation attempt.
  5. DIY

  6. 20170805_174302.jpg

    From the album DIY

    Piggybacked electronics bar atop scope.
  7. 20170805_164940.jpg

    From the album DIY

  8. 20170805_162953.jpg

    From the album DIY

  9. 20170805_161826.jpg

    From the album DIY

  10. 20170805_135722.jpg

    From the album DIY

  11. 20170805_134756.jpg

    From the album DIY

  12. 20170805_134557.jpg

    From the album DIY

  13. 20170805_133823.jpg

    From the album DIY

  14. 20170805_131005.jpg

    From the album DIY

  15. Where to purchase reliable Quality USB leads

    +1 for Startech. I've yet to have one fail. But I still keeps spares at the ready. And +1 just for their name.