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Paulus

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  1. You could look at the strip-down & rebuild by Astrobaby (search topics on this SGL). It is first class & well worth doing. Paul
  2. Had another play with data from M31 7 frame staked image A bit better I think but still a long way to go. More data needed at same ISO level
  3. Thank you TJ, I'll give it a go when I get some more data to work with as there is woefully little there at the moment. Lets hope for a few clear nights soon! Cheers, Paul
  4. I've signed & asked friends on Facebook to as well Paul
  5. If you have an image with a resolution of 240 pixels / inch and wanted to crop and enlarge an area in the image. Would increasing the number of pixels / inch in Photoshop to say 960/inch prior to cropping give a better enlarged image? (I am referring to this http://stargazerslounge.com/imaging-image-processing-help-techniques/118023-1st-attempt-m57.html) At the moment when I zoom in the ring is lost as there are too few pixels. Its probably a silly question, when I think about it my first instincts are you can't get something from what is not there. Assuming that is the case what is the best way to get the ring larger on the image, Barlow lens? Any help much appreciated Paul
  6. what a great image , pushing it a bit further works on my screen. so much for the images I've posted in the past few days Yet more reading to do Congratulations on another great image, Paul
  7. Mike, That looks very nice, far more detail than I got in my M57 We'll get there one day Paul
  8. Thank you DLP, didn't think of saving for web use! I'm not sure what happened in stacking either, was hoping someone might have a view. Very kind of you Mike, I was pleased to see the colour but I'm not happy with much else, especially the size. I hoped I could make it look bigger but the camera is only Meg so I suppose there are not enough pixels to get blown up detail. Paul
  9. Hi Mike & anyone else, I would if I could, I've no idea how to change the format, as I said in original posting. It's very frustrating & I apologise for my incompetence Paul
  10. Hi Atharh, For some reason the files were not stored when down loaded, They are now Paul
  11. Hi David, It is much better than my 1st attempts, you can make out the beginnings of the dust lanes in the arms. I believe that a lot more Data is required than you have taken, (and me for that matter) with longer exposure times and where possible lower ISO number, from what I've been reading over the past few days. I'm sure there will be a much better and more informed answer from one of the masters of this dark art soon. I bet you get there before me, seldom get clear skies when I'm able to use the scope Regards, Paul
  12. Below is my first attempt at the ring nebular (un-guided), the DSO that started my foray into the dark arts of astrophotography. I know now that there is not enough data by a long way, but there are dark flats, & flat files, only a couple of the latter! Having read Dennis Isaacs's article 'Astro Image Data Reduction (Calibration). A Primer' www.dens-astropics.org.uk I have a much better grasp on some of the whys and wherefores There are a couple of things I don't quite get at the moment, the second image is one of the un-processed files and it looks to have a lot more colour than the stacked one (first one) which I would have expected to be the other way around. The second thing is how do I get a closer image of small DSO's, do I use a 2" Barlow or something else? Stacked picture of Ring Nebular, taken with EOS 300D modded with Baader DSLR-AFC: Dark flats @ ISO 800 x5 30",37",59",60"& 90": Flats @ ISO 800 x2 2" & 10": Light frames @ ISO 800 x6 47",21",17",24",23" & 51" (last 2 with UHC filter) M57 stacked 2mb.tif Single light frame @ ISO 800 47" CRW_5041 2mb.tif Thanks for looking, Paul I've just tried to convert the .TIF files to .jpg in Photoshop cs2 and the option doesn't come up, have I missed something again? Paul
  13. OK, just tried to look at pics on here and nothing, what am I doing wrong please Still not getting anywhere, have down loaded attachments and assumed they would show in picture form How do I get around this problem? Think I've worked this out, it's not a .jpg file ? Thanks, Paul
  14. Further to my input here: http://stargazerslounge.com/beginners-help-advice/117607-cant.html As requested by Daz, here are some of the photo's I've taken that were close to being in focus, lacked excessive star trails or scope shake. I know there are very poor & it's a steep learning curve, there is a hell of a lot more to this than I originally thought last Autumn. My original intention was to record what I'd seen, M57 in particular, to show the Grey smoke-ring that I'd spent half an hour looking at. Then looking at the DSO imaging here, I thought this looks like fun So here goes, all are without darks, flats, etc, hadn't read enough then, assumed that was for the specialist CCD users : 1 is M31 taken with EOS 20D @ ISO 800 1x 29sec & 1 x 50sec M31 2 image stack 2mb.tif 2 is M45 with the 20D @ ISO 200 2 x 60 sec M45 2mb.tif 3 is M31 taken with a modded EOS 350D @ ISO 400 1 x 25 sec, ISO 800 2 x 30 sec & ISO 1600 4 x 30sec M31 7 frame stack 2mb.tif
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