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About RichLD

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    Proto Star

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  • Interests
    Astrophotography, landscape photography, scuba diving, walking, cycling, tinkering and making stuff from bits of rubbish
  • Location
    Sheffield, UK
  1. Go for it! No collimation issues or diffraction spikes and less bulk. Be sure to get the 0.85 FF/FR, which gives you 510mm focal length @ f/6.375. I'm not knocking the newt, they are lovely scopes! However after owning both I'm most certainly in the frac camp for AP - no contest for me! Just my opinion of course...
  2. First Orion for this season

    Very nice job!
  3. That looks pretty good to me - I reckon if you got the cameras aligned/rotated to RA and DEC you'll be nearly there
  4. The nice thing about a dual rig...

    My dual widefield rig has made me a very happy bunny now it's all set up and tuned - the other night I got 7 hrs HA data on a target and was in bed for 1.00 am!
  5. Intro to CMOS vs CCD

    I like them both equally, although it has to be said that the CMOS can be more versatile if required.
  6. Intro to CMOS vs CCD

    At the moment I don't have any stacked images of the same target with the same processing etc using both cameras, so I've included a single sub from each camera from a recent shoot of NGC7822. The QHY163 sub was 600s, G10/OS70 - the QHY9 sub is 900s. Both used a Baader 7nm ha filter and Nikkor ed180 camera lens at f/3.6. Both images calibrated with the usual bias. darks and flats. HT was applied in PI. The QHY9 sub was resized to match the QHY163 image in Registar. QHY163m (CMOS 600s -15C) QHY9 (CCD -20C 900s)
  7. Intro to CMOS vs CCD

    Yes - perhaps. Modern Astronomy and Rother Valley Optics carry stock of QHY products though - just sayin'
  8. Intro to CMOS vs CCD

    I'm also not quite sure why the ASI 1600mm seems to get more mention than the QHY163m. It has a shorter flange to sensor distance out of the box in it's favour, however the QHY163m has a heated sensor window and extremely good build quality.
  9. Intro to CMOS vs CCD

    I've got both - a QHY9m with the KAF8300 and a QHY163m which uses the same Panasonic sensor as the ASI1600MM. I don't do the high gain/lots of subs thing with the QHY163m, instead going for 600s subs at G10/OS70. This configuration gives me subs comparable to 900s subs taken with the QHY9m. Darks calibrate the amp glow out completely. I'm well happy with mine - I use both cameras on a dual-shooter and love the results I'm getting
  10. NGC7822 HA

    I know - terrifying isn't it? The fact that I might have to sell a camera to get a 1.25" piece of glass is quite a sobering thought!
  11. Captured on 21/09/2017 - I've been fiddling around with the widefield dual rig and currently have it set up as a double HA device - after calibration I resized the QHY9m files to match the QHY163m subs in good old Registar. QHY163m - 20 x 600s (bias, darks, flats) QHY9m - 15 x 900s (bias, darks, flats) 2 x Nikkor ED180 camera lenses at f/3.6 (using aperture masks to avoid diffraction spikes) HEQ5 (guided) Baader 7nm HA filters Captured using SGP QHY9m subs resized with Registar Registered and stacked using PI (Linear Fit) Post-processed in PI and PS
  12. NGC7822 HA

    Strewth! Maybe I'll stick with mono!
  13. NGC7822 HA

    Thank you both very much! I like the mono but think I'll try for an (or is that "a" ) HST version next year now - think I'm going to treat myself to a 3nm OIII.
  14. NGC7822 HA

    Hi Richard, many thanks! - Yes, maybe next year now for the OIII and SII, although I quite like the mono TBH
  15. NGC7822 HA

    Thank you Sara!