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Peakedge

Advanced Members
  • Content Count

    72
  • Joined

  • Last visited

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78 Excellent

About Peakedge

  • Rank
    Nebula

Profile Information

  • Gender
    Male
  • Interests
    Aircraft, sci-fi, Dr Who, TBBT, 40K...............total geek!!
    Oh, and astronomy!
  • Location
    Cambridge
  1. Peakedge

    Ideas For Challenges

    This seems like a good idea. Entries must start with the same basic, stacked data ie a level playing field as far as equipment and location is concerned. Then anything goes as far as processing is concerned. Entry must include details of processing steps so becomes a bit educational too. Also shows a good comparison between the software packages available. David
  2. Peakedge

    Orion

    Thank you Peter. Kind of you to say so and actually enjoyed blending the different layers. David
  3. Peakedge

    Another Horsehead Nebula

    Thanks Peter, yes the trouble with Altinak but did manage to keep it from being too bad (I hope!). David
  4. Peakedge

    Another Horsehead Nebula

    Again, I had forgotten to post this attempt for comment after entering the RGB challenge but here it is. I personally find that it is a bit noisy and the stars aren't what I would like them to be but any advice would be good. I didn't use darks as they made the end result even noisier. 33 x 300s subs with flats and bias. No darks. Stacked in DSS and all processing in CS5. Modded 100d, 200PDS, HEQ5 Pro, SGP, PHD2, QHY5 finder/guider. Thank you for looking David
  5. Peakedge

    Orion

    Having entered this into the RGB challenge, I had forgotten to post here for comment. 48 x 300s, 19 x 180s, 24 x 60s, 31 x 5s, 30 x 1s lights. Not sure that needed both 1s and 5s subs but used them anyway. 30 flats and 50 bias frames. Stacked in DSS and all processing in CS5. Modded 100d, 200PDS, HEQ5 Pro, SGP, PHD2, QHY5 finder/guider. All comments and advice appreciated .
  6. A late entry but a picture I hadn't considered entering but here goes. 33 x 300s subs captured 22 Jan 18, calibrated and stacked with flats and bias in DSS. No darks. Modded 100d, 200PDS, HEQ5 Pro, SGP, PHD2, QHY5 finder/guider. All post processing in CS5. Thank you for looking No Darks Flat
  7. My first ever entry to one of these Challenges and I think the first thing I've posted this season! Subs taken in the few clear nights we've had in December and January, and those that were not were spent trying to process in CS5. Can't remember how many times I started from scratch but think this is the best and hope that you all like it. Anyway, onto the details. 48 x 300s, 19 x 180s, 24 x 60s, 31 x 5s, 30 x 1s lights. Not sure that needed both 1s and 5s subs but used them anyway. 30 flats and 50 bias frames. Stacked in DSS and all processing in CS5. Modded 100d, 200PDS, HEQ5 Pro, SGP, PHD2, QHY5 finder/guider. Thank you for looking
  8. I'm trialling APP to and really liking it. I do have trouble when using calibration frames, especially flats and perhaps that is because I sometimes use flats from a different session. I have also found that if I haven't changed the view to 'linear' rather than 'linear-cal', then the effects of the flats is doubled in the view. Going back to 'linear' often cures this. APP also applies a good stretch to the stack that accentuates the gradients and vignetting. The removal tools do a very good job of removing these though. It is also worth removing the saturation tick initially as any gradients are again exaggerated. When every thing is ticked correctly, calibration frames match, etc, etc, the resulting images are excellent. Keep with it. David
  9. Peakedge

    How accurate is Polarfinder

    Could one programme be set to J2000 and the other JNOW? Just a thought David
  10. Peakedge

    Hello from Huntingdon, Cambridgeshire UK

    Welcome from Waterbeach. A really good site is halfway between Cambridge and Ely called Wicken Fen, if you ever venture this way. David
  11. Had my 100d modified by Juan and the turn round time was amazing. He kept me informed at all times as to the progress of the mod and it was back with me within days! I would wholeheartedly recommend and wish all customer service was this good! Can't wait to for him to perfect debayering!! David
  12. From one PI novice to another..................... I have never used Star Tools nor DCRAW how have you pre-processed your images prior to stacking? Have you imported the RAW files directly to PI and then carried out Image Integration, Cosmetic Correction and then the batchdebayer script? I am aware that during the debayer process you have to select the correct colour matrix for your camera eg RGGB. Could this make a difference to your image because if not debayered correctly may give a colour tinge to the resulting image? Just a few ideas and hope they help. As the guys say above, Harry's videos are excellent and have helped me tremendously. David
  13. Peakedge

    PixInsight Drizzle fails

    I have used drizzle only the once and whilst I think it 'seemed' to help reduce noise from the outset, it did introduce problems later on. My lights are from a Canon EOS 100d and are 5196x3464 pixels. I had no difficulty generating, updating or integrating the drizzle files but any subsequent action that was processor intensive such as denoise took several hours and even any simple action took quite a while, due to the size of the subsequent image. Would I use drizzle again? Possibly, but only if I wanted to produce a very large format print or zoom right in to a particular detail in the image. Other than that, I would avoid. Silver linings and all that, it did quickly teach me to try out all my actions on small previews of the main image before committing to several hours of waiting for a process to complete. That said, I only have an i3 with 8GB of RAM and would welcome a Cray too!! David
  14. Peakedge

    Rosette Nebula

    Or if not pink, less red!!!!!
  15. Peakedge

    Rosette Nebula

    And the redone picture......
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