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edjrgibbs

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About edjrgibbs

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    Male
  • Location
    Cuddington, Bucks
  1. Astrotrac

    Most likely the Bergerac/Bordeaux region. I was there a few years ago and had fantastic clear skies. Where did you go?
  2. Astrotrac

    Agreed, I got lazy a few years ago and stopped taking flats and darks. I need to get back into the habbit. Flats are easy as they're quick you just need an even light source but darks are a bit of a [removed word]... I'm keen to try my 70-300mm out at the long end to see how it compares to my Equinox 66. Can't wait for the south of France summer holiday now!
  3. Astrotrac

    Should also say, taken on a D500, 105mm Nikon lens at f4.
  4. Astrotrac

    In May of last year I bought an astrotrac on AB&S in a moment of madness. For various reasons I've only had a chance to test it recently with two clear nights. Well, one clear night and one where it clouded over after 20 mins... I have to say I'm impressed. Its incredibly easy to use and seems pretty accurate. I use it on a Triopo carbon fibre tripod with a Hahnel tripod head. I found a molle shotgun scabbard (randomly) on ebay that the Astrotrac fits into perfectly. I think this will make a perfect travel mount for holidays and wild camping. Pics below of 30 x 1m subs on a D500. Need to push it to 2-4 min subs.
  5. HEQ5 Pro and PHD2 Movements

    I had the same issue a few years ago. Turned out to be a balance issue. At certain angles my RC6 was going into freefall. It only did it when guiding for some reason not when normally slewing.
  6. Diffraction spikes on an ED80

    Yep, all good. They were the right way around.
  7. Diffraction spikes on an ED80

    I did start to question my own sanity on this last night. I think I did. In the pic (https://www.firstlightoptics.com/rgb-filters-filter-sets/baader-lrgbc-ccd-filter-set.html) sitting in the filter wheel with the glass closest to the CCD i.e. the indented filter cell pointing towards the ccd. Does that even make sense?
  8. Diffraction spikes on an ED80

    Frustrating... Its new...
  9. Diffraction spikes on an ED80

    Not sure. I'll check this evening to make sure they're all clean and clear.
  10. Diffraction spikes on an ED80

    I'll experiment without the OAG when we next get a clear sky.
  11. Diffraction spikes on an ED80

    Here's one of each channel.
  12. Diffraction spikes on an ED80

    Thinking about it, there looks to be a small chip in the optic on the OAG. Could that be causing some light scatter/reflection of some sort?
  13. Diffraction spikes on an ED80

    Definitely not. I've done that once before...
  14. Diffraction spikes on an ED80

    Thanks for the response. All done last night. I took around 10 L then realised i'd not connected the filter wheel so connected and took the R, G and B. All in all around 30 mins. No meridian flip as far as I can remember.
  15. Diffraction spikes on an ED80

    Ooops. To be honest, I have no idea... Trying again. A more manageable JPEG.
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