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R Fisher

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Posts posted by R Fisher

  1. Subs were only 400S in OIII, I can see the bubble in the upper right of the image on the OIII integrated channel but it doesn't come through very well on the combined image without introducing too much noise,

    Will try longer subs as you suggest, its in an ideal part of the sky for me at the moment so only need some more clear sky. 


  2. Taken last weekend with the SW Quattro Newt and QSI 690 CCD in the HST scheme.

    Spent most of the previous week setting up the scope after a long period of not using it.

    Aim of the image was to enhance the OIII emissions (blue) around the outer parts of the nebula. 


    • Like 4
  3. Thanks for the comments all, Plesed the colours seem right.

    Tim, Used the Quattro 10 CF, (using 2in filters), had problems with vignetting using this scope with the Atik 4000 previously.

    Still use flats though. I find that the combination of the fast F4 and the camera in bin2 mean I can get a reasonable NB image in one night.


  4. Late to get up and running this year but couldnt resist a go at one of my favourite regions in Cygnus.

    Needed to reduce the colour saturation a lot in this image and overdone the OIII exposure (makes a change from the dominant Ha). Didnt need to tweak the colour balance much to acheive the gold red blue tones of the HST Palette.

    Possibly lost some of the feint stuff in the dark rift between the NA and the Pelican Nebula due to boosting the contrast.


    • Like 1
  5. Thanks for the comments all, was very pleased with this image and as mentioned it is difficult to comprehend the number of stars in this field of view.

    The blue line is only from one sub, didnt notice until the final strech of the combined image.

    I intend to reprocess with some more L data next clear night oppertunity, will get rid of the affected sub and hopefully enhance some of the feint dusty regions starting to come through.

    Any tips on how to best do this would be welcome.


  6. Cool result! Images like this shake my trust in the DSLRs and make me think to switch to CCDs :)

    Thanks Yodah,

    Did use a SLR for a while but decided move to CCD mainly for narrowband,

    Image is SII, Ha, OIII in HST combination,

    lucky to get a very dark clear sky to be able to complete in one evening on this one.

  7. Nice image, captured the colour well.

    I am taking a break from DSO's at the moment as well, Have overlooked the moon and planets for too long, the images in this section give plenty of inspiration

  8. Thanks for the comments,

    Was not expecting a too much with the first images.

    Regarding the new camera, dont feel qualified to comment on the imaging performance because have no experience with this type of imaging.

    Can say its very well built and easy to use though.

    Have an old C11 scope so looking forward to giving it a go as well.


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