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Mark Haythorne

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About Mark Haythorne

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    Nebula

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  • Location
    UK
  1. A number of firsts here for me. New filters/filter wheel, oag, guide camera, relative new 2nd hand scope & Mount. And the other night everything worked a treat, didn't take long to actually start imaging, until my filter wheel hit the tripod legs and so I rotated it 180 deg (and is now not correctly framed, given me a chance to practice in PI), and then started again, DOH no flats for original shots. In the end I managed a few Ha and OIII captures.... Then took Flats, Flat Darks, Darks & Bias. Created Master Dark, Master Dark Flat & Master Bias, then a Super Bias, and then a Master Flat. I've just bought PixInsight and Warren Kellers Book 'Inside PixInsight'. and having followed it through to the point of Cosmetic Correction (hadn't opened an image after calibration, noob alert) and was shocked to see the following image. I read on here that the 1600 doesn't need a Master Bias, so I went and did the whole thing again, without the bias obviousily and got the following, nothing else done to it apart from calibration... Phew
  2. Thanks all. That's great you all seem to advocate doing it, I'm going to give it a try as the forecast is for rain this weekend.
  3. Does anyone create a set of Master Flats that they reuse, as I would be interested in how well they work. I'm thinking that as SGPs Image history shows focus position (I have a motor focuser) and temperature. I could for a number of different filters and exposure times build up a Master Flat Library (as I have done with my Darks) by using the mean focus distance, as long as I don't change the orientation of my imaging train. Then if the air temperature significantly changes the focus position redo them, or after an extended period of time. Because creating light frames are pain, when your gear has to be moved in and out of the house.
  4. Interesting, I've just bought Pixinsight and Warren Kellers Book, I'm just in the process of having a scan through the book first before getting down to read it and use PI in earnest. Looking at your outputs it shows that it's good to understand how to do things manually by stepping through each process and understanding what it does, then if running a script gives the same result all well and good, it can be used. By not understanding the principles behind the Script it and always using it, you could think that PI was doing a poor job.
  5. I just love the starless version, which is interesting as the idea is to get perfectly round stars.. Seems they aren't needed :)
  6. I'm using AstroPixelProcessor and there was about 100 lights plus flats and the camera is a zwo 1600 therefore each image is 35mb so my machine struggles.. but gets there in the end.
  7. I tried Pixinsight a long time ago and as like you found it overwhelming so I tried AstroPixelProcessor, it might not have all the bells and whistles but using the default settings produced for me an image I could then put into light room and get a reasonable image. I like the second one for the detail but the background is a bit too light on my screen.
  8. Thanks for all your comments. For the second image I dithered every 4th frame and anything with a streak I binned, also had to do a crop as the stars all around the edges where elongated. I guess I'll have use a flattener. I don't think I'll try reprocessing just the lights as I'm doing it on a 2009 Mac Book and it took about 5 - 6 hrs
  9. Hello All I haven't posted in years, for some reason I had an urge to start Astrophotography again so I sorted out my scope which wasn't in the best state. After watching numerous videos on youtube and getting an evaluation version of SGPro I was excited to start again, this was back in December so due to conditions this never happened. In the mean time I tried out Astro Pixel Pro as I could never get on with PI, too complicated for me :). Then suddenly Last Saturday the clouds cleared and I was able to start my Astrophotography journey again. After setting everything up my guiding started.. Well it it took a while to get everything going but eventually all was fine and I was happy to get LRGB subs and then some flats. Imagine my excitement when I post processed my images and from this I got the following. I was gutted, no idea what I did wrong. So on Monday it was clear again, this time I took half as many lights.. But took Flats, Darks, Dark flats and Bias Frames and got the following. L 40 X 30 sec RGB 40 X 60 Sec I know it's not the great but I'm so pleased with it Cheers Mark
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