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richyrich_one

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  1. Moving the mirror up the tube, by replacing the mirror cell screws with longer ones and using threaded spacers, is also an option. It's reversible. No hacksaw required, just a bit of nerve to dismantle the mirror cell.
  2. Got a bit more data this morning so total of 18x300. Getting tired of processing this one now and I think I've settled on this version. Used the arcsin stretch in PI which has always produced pink star cores but a slight adjustment in curves brings them back pretty well. The colour comes out a lot more natural.
  3. Notice the double difraction spikes? That shows the focus is off.
  4. That's looking really nice. How are you getting focus?
  5. Thanks Tony, edited to show capture details.
  6. Posted elsewhere but it deserves to be here now I've fixed it. ISO 800 12x300 lights, library bias, 30 flats, no darks Processed in PI
  7. True. But that then makes darks necessary? I couldn't be bothering with all that nonsense! For the small outlay to get the mount controlled by pc so dithering is possible/easy it's well worth it in time/hassle saved.
  8. Not that I'm aware of. I've always used eqmod. Perhaps someone else might know.
  9. I'd say so... https://www.ebay.co.uk/itm/Hot-2-034-OPTOLONG-UHC-Nebula-Filter-for-Telescope-Eyepiece-Cuts-Light-Pollution-CO-/201580249527
  10. Some info on Optolong filters... http://www.astronomik.com/en/news/chinese_copies_en/
  11. Reprocess of October 2016 data 35x300
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