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Darth Takahashi

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Everything posted by Darth Takahashi

  1. CA will only be an issue on the brighter objects and can be very distracting both visually and in images. I would try to buy a secondhand refractor, a doublet WO Megrez 72FD or similar, you can't go wrong with one of these scopes.
  2. Weather permitting I'll come back to this and add the missing OIII and SII data. Unfortunately, that might take another month!!!
  3. Here is approx. 3.5 Hour of H Alpha data on the Butterfly, IC1318 in Cyngus the Swan. The nebulosity is actual very close to the star Gamma Cygni which can be seen in the top right corner of the frame. There is a lot of nebulosity in this area with the Crescent not very far away and part of the same complex etc... Image capture using the BabyQ and the ST10 Guiding by WO Megzres 72FD and Atik 16IC 20x 600 sec via a Baader 7nm H Alpha filter All processed using PI and Photoshop.
  4. Wow, thats fantastic... The large version is excellent, full of detail that you don't see here in this limited size version, definitely worth a look...
  5. In my opinion the only HONEST image here is the monochrome H Alpha!!! I do appreciate all the points here but get a little worried when men start talking about "Turquoise" , it a GIRLS colour (no offence!)... Seriously, there is an anti green philosophy with the Hubble pallet, if this is the right way to state it? I don't no where its right or wrong, what I do know is that my eyes prefer the GOLD and Blue colour schema and I have no objections to leaving in a slight GREEN transition. I'm still learning just like everyone else but the Hubble Pallet does feel very much like a moving target. Anyway, thanks for all the comments and opinions; I might try the impossible = one move image; "NGC7000 - The Everyman Image" there again I might not...
  6. Thanks Matt, Here is the final version of my Hubble pallet. After seeing Matt version I have pushed the green out of the image further. However I also noticed that the SII stars needed to be reduced in size since they are causing too many small halos!!! Here is the final version of the North American Nebula
  7. Here is the North American Nebula in the Hubble pallet and HA. I'm still a relative novice to the Hubble pallet adjustment and didn't want to overcook it? Most probably it can be pushed a little further? The image was capture using the trusty ST10 and the BabyQ FSQ85 over the course of this month. I have been battling with the weather to complete this before my holidays start tomorrow!!! 12x 800sec HA 17x 600sec OIII (2x2binned) 15x 600sec SII (2x2binned) I binned the OIII and SII since these are very weak in the nebula and don't contribute much in the way of detail. The HA data has been used as the GREEN channel and also a Luminance channel for the final image. The HA data is a little wider since I have had some small alignment issues between sessions, still setting up and tearing down my kit each night / session This is the alternative colour schema, I suppose that there is no wrong or right colour schema its just down to your personal preference? Which one do you like?
  8. Its very good but it needs a FLAT since you have a clear hot-spot in the middle which is to be expected. You can make an artificial flat using photoshop as follows; 1, duplicate you layer 2, use dust&scratches to remove all the stars 3, use the clone stamp to remove the residual M27 4, apply a large gaussian blur 5, change the layer mode from normal to subtraction and blend it in using the opacity slider Your done.
  9. A very nice set of images and it definitely shows what can be achieved with a modded DSLR, great.
  10. Fantastic capture from down south, lots of detail in here, really jealous!!!
  11. Very nice whispy detailed image, great.
  12. Thats a good attempt, this is a difficult galaxy to image, very very faint...
  13. Here is the North American Nebula in H-Alpha. This is only 10x 800sec with the ST10 which is a H-Alpha hoover, it simply suck-up H-Alpha since this is where it is most sensitive, approx. 60%!!! This is also the first image from the BabyQ and it has performed fantastically. I have never seen FWHM values consistently well below 1 before now, not even with the TOA130F. At my location narrow band imaging is a lot better than RGB, I simply get too many issues using broadband filters.... Unfortunately, the good weather has gone to be replaced by the rain! The second image has an additional contrast stretch and sharpening applied in PhotoShop. There is a little too much noise but its due to the fact that my DARKS at taken at -20Deg.C and the camera's thermo-electric cooler was struggling to get below -15 Deg.C due to the hot sticky nights lately.
  14. That's absolutely fantastic...well done, can't wait to see more!
  15. I also had trouble posting a new image; it appears that you can only do it by linking it from another site such as "PhotoBucket" using the <img></img> tags. I'm going to be setting up a secure FTP-server tonight so that I can share large files including the TIFF etc... So you might want to wait for that. Then you can have a crack at the RAW data. Its always interesting to see what other people can do with the image processing side of things. so you have my permission to post your results. Regards Neil
  16. Well here it is a better - reprocessed version of the original data. Looking back at it all last night I also discovered a couple of issues with the FLATS that were made, especially for the RGB. The RED and BLUE flats seem OK but the GREEN flats have gone completely wrong for some reason, this has cost me a lot of extra work to correct manually in PI. you can't beat having good flats, they really do help to smooth your image processing path. With this image I have also added a separate layer for the stars since these can loose most of their colour in LRGB images. Well I hope that you all agree that this is an improved version? It couldn't get any worse! Still this is one of the fun parts of imaging = image processing and processing and processing... There is always a little more detail to be pulled out. Interestingly, I noticed last night that the cooler was struggling to reach its set-point of -20 Deg.C. The outside temperature was +24 Deg.C even at 23:00 I think I need some water cooling next time!!!
  17. Sorry, only just managed to check this with my MAC and its horrible... I will reprocess it shortly using a proper computer. This is what you get when you pinch a little bit of the company's time on a rubbish DELL computer, never mind, lesson learn't. Matt, report " Neil is very trying but need to pay more attention to his work" can't disagree on this result!!!!
  18. Very nice start, can't wait to see it in colour... A wider shot would also reveal the dust lane as well.
  19. Not the best M51 but its OK, I think? I meant to capture this object much earlier on this year, when it was higher in the sky and almost directly over head at the zenith. however, the weather and business commitment stop all that nonsense!!! This is a new approach to M51 for me. I have combined the images from my trusty TOA130F with the SuperNewt (300mm, F4) newton using a Baader corrector. The newt has brought some additional image resolution but at the moment the price paid for it is too high. The stars from the newton aren't to my liking being a refractor aficionado. Initially, I had pinched the optics and misaligned the mirrors - too much trust in lasers! Those issues have now been resolved; however, the stars are a lot better but just not as good as a refractor. The image data was captured as follows; LRGB = 600s, 200s, 200s, 200s; Approx. 5 hours worth of data L = 600s x 15 from the Newton (additional resolution) The newton also brings me other challenges, since I'm guiding it in "Dual Chip Mode" with the ST10 on-board guide chip. This is too small and in a star poor area such as M51 means finding a good enough guide star is problematic. With the TOA130F I have the luxury of guiding with a BabyQ and ATIK 16IC which makes things a lot easier. Processing is done with a mixture of Pixinsight and Photoshop and can definitely be improved, this is a quick pass at the new data.
  20. Very nice with lots of detail coming through.
  21. A very nice start, keep up the good work.
  22. Absolutely fantastic and one of my all time favorite images, excellent capture with lots of beautiful detail and colour.
  23. The hubble pallet is a tricky beast to work with because there are so many variations of it, excellent result though.
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