Jump to content

SkySurveyBanner.jpg.21855908fce40597655603b6c9af720d.jpg

rubecula

Members
  • Posts

    364
  • Joined

  • Last visited

Everything posted by rubecula

  1. Wonderful image, I love the colour rendition. I'm about to rework my version of the Trunk based on processing knowledge people have given me here recently. So I'm looking forward to seeing the full details on your website. Update: Just had a detailed look at your website (my first time, very impressive, lots of information, beautifully presented). Your images are really outstanding and your site is a pleasure to browse. I'm in awe.
  2. Carole, that's a lovely image by any standards, let alone when you are having equipment problems.
  3. Lovely image. That's a rose behind her ear.
  4. Lovely image. The more I see of these Grand Vistas the more I'm beginning to like them. They really repay a deep study.
  5. Thanks, I've tried Starnet and it didn't do a very good job. so I'm going combine the Ha and OIII stacks and use the method shown on AstroBackyard.
  6. After several goes at trying to process a HOO image I'm wondering if removing the stars will work better. So far I have managed to get reasonable colours out of the nebula and surrounding hydrogen clouds but the stars end up a mess with large halos. This using PS. Not sure I want to spend money on PI. I've been starting the process on Ha and OIII subs stacked and gradients removed in APP. I've then done some gently stretching and level adjustments such that the stars and nebula are visible. My next stage would be to drop the stacked and stretched images into the R, G and B channels of a new document. Would it be better to remove the stars in the separate Ha and OIII stacks first or when they are combined in the new document? My plan would be to use Colour Range to select and remove the stars, before continuing with further stretching. Thanks
  7. That's a truly beautiful image. @ollypenrice's comments say it all.
  8. 1 sub, good grief, that's some scope you have there! If only.........
  9. That's amazing for such a short duration. The two panes are well put together. What camera were you using?
  10. Oh dear, I put this in the wrong forum, it should be in Imaging - Deep Sky. Any idea how I get it moved? Thanks
  11. Thanks to an immense amout of patient guidance from Ian (x6gas) I have reworked my Thor's Helmet data. Its an HOO image composed of 14 x 600s Ha and 19 x 600s OIII. Data capture using SGP and PHD2. Processed with APP and PS. It uses Steve Cannistra's synthetic green method of combining the colours. The reworked image has much smaller stars, some with a little colour, a less pitch black background (now at 23/23/23 and not clipped) and I think I've managed to keep the nebula less bright and blue. The improvement is entirely down to Ian, any remaining faults are my own. Thanks
  12. What a wonderful image, there's so much detail to look at. The dramatic illumination of the gas clouds, the gently fading blue areas, sumptous! After investing 28hrs you deserve such a glorious result.
  13. Great Image Carole, I wish I could stay awake all night!
  14. that's beautiful, such glorious colour
  15. Or maybe this is better. The last one the adjustment was made to the midtones in this one the adjustment is to the shadows, which has had less impact on the nebula. But on my monitor I can't see any change to the background. Thanks
  16. Does this look any better? I tried Colour Balance in PS and moved the Blue/Yellow slider towards yellow. The blue value is almost the same as the red and green. Other than the Ha being more prominent and the nebula slightly less blue the background still looks the same on my monitor. Thanks
  17. Ah, I see background too blue, I thought Martin meant the nebula! It must be my monitor as it looks quite black to me, in fact too black. I tried the method Ian (x6gas) showed me to get the background to 23/23/23 which worked a treat in my NGC 3628 image but made a complete mess of this one so I left it alone. How to remove the blue in the background without spoiling the nebula? Thanks Adam
  18. Interesting comment Martin. Do you mean too bright a blue or the wrong shade? Looking online there are all sorts of shades from bright green to a darker blue. I did look online before I finished it (but when is an image ever finished?) and ended up where I am. I would appreciate your further feedback. Thanks
  19. Thanks guys for your kind comments.
  20. Wow, that's so good of you Ian. Thanks for that illustrated explanation. You've added a whole new avenue for me to explore. I had a quick go on the image and as well as lestening the blackness it revealed the small distant galaxy that is just to the centre left of NGC 3628 and also (if I'm not fooling myself) a very feint hint of the NGC3628 tail. It has however made the background a bit blotchy so that may need more work. I had a problem with the captured images. The camera dessicant seemed to have suddenly given up and there were what looked like little drops of water and some icing in the images. I've had to clone them out so that may contribute to the blotchiness. The folks at Atik kindly sent me some new dessicant tablets so it's all ok now. I'll have a play tomorrow and put up a copy when it's as good as I can get it. Once again thank you, that was very generous of you. You're a 🌟
  21. I collected data for this back in January and have had three goes at processing it. I think this is the best so far. 😀 It's an HOO image composed of 14 x 600s Ha and 19 x 600s OIII. Data capture using SGP and PHD2. Processed with APP and PS. Attempts to reveal the Ha nebulosity at the one o'clock position greatly overexposed the OIII in the main part of the image. In the end I overlaid the main part of the image with a section cut fron a less stretched image. Thanks to help with my previous NGC 3628 image I can see that it needs more work on star colour (add some RGB?) and sky background colour (too black). And it still looks noisy in places.🙁 Thanks for looking,
  22. Brendan, thanks for your input. I've tried letting SGP autofocus do the work with LRGB filters, sometimes it works, other times I get an out of range response and have to intervene manually. I've had some help from the SGP forum but am still struggling. It must be me and/or the settings I have. A highly respected member of this forum (not sure whether it's appropriate to name them) stated they use offsets for all filters so I thought I'd give it a go. Ian, you've given me a lot to think about, thanks: Star saturation - I'll go back and check that, Background colour - I presume you mean R/G/B 23/23/23? Not sure how you check and change that. I tried Image/Adjustments/Replace Colour on the whole image but that made a mess of the DSO. Then I tried deselecting the DSO but that produced a discoloured border between the sky and the DSO. Ho Hum.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.