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About R1k

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    Manchester, UK
  1. 1. Skywatcher Evostar 80ED pro outfit in excellent condition, as seen here https://www.firstlightoptics.com/pro-series/skywatcher-evostar-80ed-ds-pro-outfit.html, includes - OTA - recently serviced by Orion Optics, optics are pristine, few marks on tube from mounting rings and dovetail - Diagonal - Eyepiece - 9x50 finderscope - Aluminium Carry Case 2. Upgraded Dual-Speed 2" Crayford Focuser for Sky-Watcher Refractors, as seen here https://www.firstlightoptics.com/skywatcher-focusers/dual-speed-2-crayford-focuser-for-sky-watcher-refractors.html 3. Altair Lightwave 0.8x field flattener in excellent condition, as seen here https://www.altairastro.com/lightwave-08x-reducer-290-p.asp I have priced this at 70% retail value - £510 (plus shipping, however collection preferred) Will upload photographs tomorrow
  2. Unusual target but in a nice position from Northern skies at present. Shot in the early hours of the morning on 22/11/20 Constructive feedback appreciated. Equipment: - Skywatcher HEQ5-pro (Rowan Belt Mod) - Skywatcher Evostar 80ED - Canon 800d (modded) - Altair Lightwave 0.8x focal reducer/field flattener - ZWO ASI-120MM-mini guide camera - SW 9x50 finderscope - 2 inch mounted Optolong L-Pro Acquisition: - Sharpcap polar alignment, APT acquisition, autoguiding/dithering with PHD2 - Lights - 10 x 150s and 38 x 90s at ISO200 (1 hour 22 minutes) - Darks – 5 x 150s and 10 x 90s - Bias - 20 - Flats – 20
  3. Thanks Olly, this is very very helpful. Appreciate the help (as always!)
  4. Sorry to bump an old thread. olly - could you kindly explain what you mean by adding Ha to red in step 2? Do you mean splitting the RGB channels and adding the monochrome Ha data to the red channel?
  5. R1k

    Canon EOS 7D

    Is it a mk1?
  6. New and boxed Canon EOS 77d, will post photos later today. £450 collected from near Manchester. £460 delivered.
  7. Price reduction: £170 collected £180 delivered
  8. Pristine, unmarked and effectively new Unmodded Canon 550d with shutter count of just 121. Camera well known in astro community for video crop mode which is an excellent tool for planetary imaging. Comes with: - 1 x genuine canon battery - 2 x replica batteries - Canon EF-S 18-55 f3.5-5.6 III lens (also pristine) - Genuine Canon ES100 carry case - Replica USB battery charger - USB data transfer cable - 8Gb SD Card Does not come with the Original Box or instructions Price £180 collected (near Manchester just off the M6 motorway), £190 delivered UK mainland
  9. Thanks for this Olly, totally makes sense. I will try this entire technique (RGB with various sub lengths, blended and the NB layer on top) in the coming months when I get to have a bit more time on the nebula. Very much appreciate you making the effort to explain this in great detail, have certainly learned a few things that I’ll be able to move to other projects/targets too. By the way, your M42 on Astrobin has totally blown my socks off, wow!
  10. thanks both for the very helpful comments, I agree it is overstretched and probably a bit oversaturated. Olly - Many thanks again, this type of feedback is exactly what I am after. how short should the subs be for the core? We talking 30s and less? As for the filter, I’m fairly new to the hobby, so assumed that any object with emission nebulosity would benefit from a NB filter. I will have a bash without a filter and see how it compares. thanks again both!
  11. Very much enjoyed shooting this for the first time ever last night, keen to receive feedback as always -- Technical details: Equipment: - Skywatcher HEQ5-pro (Rowan Belt Mod) - Canon 800d (modded) - Skywatcher Evostar 80ED - Altair Lightwave 0.8x focal reducer/field flattener - ZWO ASI-120MM-mini guide camera - SW 9x50 finderscope - 2 inch mounted Optolong L-eNhance Acquisition: - Sharpcap polar alignment, ST4 autoguiding with PHD2 - Manual acquisition using intervalometer - Lights – 15 x 180s (45 minutes) - Darks – 25 - Bias – 30 - Flats - 30 Processing: - Stacked and calibrated in APP using HA and OIII extract algorithms - Monochrome images combined in PS CS6 (HOO Palette) - Crop to area of interest - Levels/curve stretch - Unstretched core blended carefully onto stretched image so that it was less blown-out - Contrast enhancement and denoise - Slight desaturation of brightest stars (they appear too blue with the L-eNhance filter)
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