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Roy Foreman

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About Roy Foreman

  • Rank
    Star Forming

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  • Interests
    Deep sky astro imaging
  • Location
    Minehead, Somerset

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  1. Roy Foreman

    Roy Foreman

  2. Neil - I am sure you will get good results from the 178m when you get it, as your imaging skills are certainly up to the task of getting the best out of it. There will be a learning curve, of course, and yes you will see what I am up against in using the larger chip. Like you I got a large chip camera to do whole disc mosaics, and I also like to pixel peep. Sometimes, using small pixels, I find I can get better results from doing a selective enlargement than from using optical amplification in the imaging train. There seems to be so many variables that there is no ' one size fits all' solut
  3. Neil - bit of a delay in responding, I've had some (non astronomical) problems to deal with ! Thank you for the compliments on my self built mount. It helped that I have some metal working experience, and that I am a design engineer by profession, but it was still a huge leap of faith and expense. I was fairly confident that it would work, but I wasn't sure how well. As far as the lunar imaging goes, I have just remembered that these images were taken in twilight using a red filter which saps 3 stops of light. I had to up the gain a bit to compensate - hence the noise in the selectiv
  4. Thanks guys for the suggestions for reducing noise and improving image quality - I am always striving to do better and am glad to take on board any new or revise technique that might help. One of the reasons that noise is visible in Ptolemaeus is that it is a pretty substantial selective enlargement from the image above it - and that was taken at a focal length of 5400mm. But some of it may be down to the camera I am using - a ZWO 183 MM. This has tiny 2.5 micron pixels and a fairly large sensor resulting in a 20 megapixel output. At full frame it can't go any faster than 19 fps. And th
  5. You are right, John, it has done a pretty decent job of reducing noise and, as far as I can see on screen, little or no effect on the sharpness. thanks for that, and glad you like the images Roy
  6. With my SW 180 Mak and my Celestron 8" Edge SCT, I use the electric focuser from a Meade LX200. It just screws onto the back like any other SCT accessory and takes up less back focus than a crayford focuser. Does the job nicely, albeit sounding like a coffee grinder. Mine came with an LX200 (obviously) but I think you can buy them as a separate unit. I also purchased a dedicated hand controller for it from Telescope House, but I am not sure if they still make them.
  7. Yes love the star colours - well done
  8. Very nice - love the colours !
  9. Roy Foreman

    Roy Foreman - Lunar Imaging

    Lunar Landscapes from Sunrise Observatory
  10. All sorted ! I now have colour images Thanks again Alan
  11. Thank you for that info Alan. I will check it out when I get time and report back. Cheers Roy
  12. All was going well last night gathering data on M63 and M64, using Sharpcap and a one shot colour camera. Then at 1am, freezing cold and tired, I realised that somehow the captured images had all been saved as 16 bit Tiff, not Fits. That's when I gave up thinking dark (Bortle 1) thoughts. I've had this happen once before. Both DSS and Photoshop will only read them as monochrome. Does anyone know if the colour info been lost forever, or is there a means of recovering it. The resulting monochromes look sort of ok, but colour is prettier.
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