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barkingsteve

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Everything posted by barkingsteve

  1. Not the best conditions but i recently cleaned the c925 and wanted to collimate. The moon was out and took the opportunity to take a few test shots. These are taken with a celestron 2.5x barlow and a 178 mono at bin 2 with a 642 ir pass filter.
  2. 33 x 3 minute exposures ( gain 121, brightness 4 ) captured with an Ioptron GEM45, 8" F/4 Newt, 294MC pro with L-Extreme filter. Guiding with svbony 30mm guider and 178mm camera.
  3. Rather than the t shirt method, may i also suggest getting some light diffusion material like this: https://www.amazon.co.uk/Seamless-Diffusion-Photography-Lighting-Modifier/dp/B019GSCJFA?th=1 and using some embroidery rings like this: https://www.amazon.co.uk/Stitch-Embroidery-Plastic-Handmade-Crafts/dp/B08DR76MRD/ref=sr_1_92?dchild=1&keywords=embroidery+rings&qid=1635811700&sr=8-92 I stretched 3 layers of the material in between the ring though this can be a little tricky to get perfect at first, then trim it up.
  4. Hi Neil, Thank you The C925 is around 3-4 years old, it is the ota from an evo 925. The evo mount stopped working properly about a year ago i haven't collimated in a while and it is just a gnat's hair out, but...you know..... time collimating is time not imaging I keep meaning to use the 178mm at bin 2 with the 2.5x barlow, that should be close to optimal sampling but yeah, results are still fine when you oversample a bit and conditions are ok or better.
  5. Thank you Here are a few more along the terminator from the night, this was with the 294 and a 2.5x barlow. I kept these desaturated.
  6. 2 panel mosaic with the C925 and 294MC pro with ir/uv cut. Mono shots with the 178mm and 642 ir pass filter.
  7. Early Friday morning shot. best 50% of 2.5k using C925 with the 0.63x reducer and 294MC pro with uv/ir cut filter. Stacked in AS3, sharpened in registax and processed with gimp.
  8. Hi Jody, It was the first time i had used Gimp for processing, i usually use PS but if i recall it was just playing with saturation, hue-chroma and hue-saturation under the colours tab. You can individually increase the hue and saturation of certain colours under the hue-saturation tab which can be useful. I also never used layers, just the main image. I really do not have a set procedure, i just play with the sliders until it looks good to me hope this at least helps a little.
  9. Hi Mick, I have an old etx autostar handset from my etx 125 which has been sitting in the cupboard for around 20 years ! as far as i recall it works fine last time i used it and if you want to pm me your address i am also happy to send it on to you free. Regards, Steve.
  10. 2 hours total consisting of 180 second captures in Bortle 8 with a sharpstar 61 EDPH II 294 mc Pro and L-Extreme filter. Stacked in DSS, processed in Siril, Starnett++ and gimp.
  11. Here is my humble effort of the Veil from last night. 57 x 90 seconds using a 61 EDPH II 294MC Pro and L-Extreme filter ( bortle 8 skies ) stacked in DSS then processed in Siril and Gimp.
  12. 26 x 180 seconds ( 1 hour 18 mins ) Stacked in DSS with master flat and dark, processed in Siril and Gimp. Ioptron Gem45 - Sharpstar 61 EDPH II @ F/4.5 with 294MC Pro and L-Extreme Filter. Guiding with svbony 30mm F/4 and 178 Mono
  13. Have you tried Gimp and Siril ( both free ) I use DSS to stack then Siril and finally gimp to process. The noise reduction and shadow functions in Gimp can reduce your stars, I had a little play with your images in Gimp ( hope you don't mind ) just to show you what is capable with a free program.
  14. 1:13:30 of data ( 49 x 90 seconds ) Still having slight issues with coma and spacing of the corrector but a bit better than before. Using the GEM45, 200mm F/4, 294MC Pro with L-Extreme filter. Stacked in DSS with a master dark and flat, processed in Siril and Gimp. I will spend some time in the near future looking at some processing vids but winging it a bit for now
  15. The L-Extreme certainly helps reduce star bloat but in gimp I played around with shadows-highlights and noise reduction. both helped eliminate the fainter stars. I was using the old Altair triband filter before but this filter blows it out of the water. I didn't even have to do background extraction on this stack
  16. First time using PH2 and dithering. Also the first time using the sw aplanatic cc and l-extreme. Spacing seems a little off as getting coma in the corners, using 55mm but i saw somewhere you need 53.66mm for 800mm fl. As a first light with this setup i am pretty pleased with the results. Ioptron GEM 45 with TS photon 200mm F/4 ( Bortle 8 skies ) guiding with svbony 30mm f/4 scope and 178 mono 294MC Pro with Optolong L-extreme cooled to -10c stack of 27 x 90 second frames with master dark and flat applied Processed in Siril and Gimp. Now to get my head around stacking, debayering raws, processing, etc
  17. Good to hear 👍 all your pics will have a green cast due to the bayer pattern ( 2 green to one blue and red ) you can use a program like siril ( free ) to remove the green cast or just balance the colour in post processing ( gimp, photoshop, etc. )
  18. In sharpcap settings ( general ) have you ticked compress tiff files ? if so, best to untick until you find a software that can debayer compressed files. The image files will be bigger of course but at least you can debayer them
  19. Hi Jim, Yes it does, if you zoom in you can see the bayer pattern. The problem you might be having is that you are using compression and some programs ( pipp for instance ) cannot debayer compressed tiffs. I am sure someone with better knowledge on software can help
  20. Took a quick one at the end of an imaging session. 200mm F/4 newt and 294MC Pro. Best 25% of 5k frames , stacked in AS3, sharpened in Registax and processed in Gimp.
  21. You could get one of these for the 294. https://www.firstlightoptics.com/zwo-accessories/zwo-anti-dew-heater-strip-for-asi-cooled-cameras.html
  22. They were also working on a 91mm version but i am sure that one will be out of my price range But, but....... it's red
  23. Looks like the wait will soon be over for this scope, found this Taiwanese web page where it says it is for sale. https://www.galuxe.com.tw/products/william-optics-redcat-71-apo-中紅貓天文望遠鏡 The discounted cost is around £1300 ( 49,500 new Taiwan dollar ) Compatible with full-frame and phase field range covered by APS-C cameras Use APO grade FPL-53 optical lens The design of the optical focus assist plate in the hood With image field rotation system Lightweight and easy to carry on expedition abroad 48mm filter screw can be built-in Vixen/Arca-Swiss double pass specification dovetail version RedCat 71 APO Optical form Refracting telescope Effective caliber 71 mm Coating Comprehensive multilayer coating focal length 350 mm Focus ratio (F) F4.9 Dovetail plate type Vixen Type and Arca-Swiss compatible size 430mm long The outer diameter of the hood 105mm Weight 3.6 kg
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