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Atik Horizon Mono Filter wheel and Filters


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    • By Rolland Balazs
      Atik One 6.0 CCD + OAG + Astronomik filters + Atik-Eos adapter
      Include:
      - Astronomik II. LRGB; 6 nm Ha, SII, OIII filters
      - Unique Atik-Eos WORKING adapter
      - Power supply, USB cord
      - Pixinsight dark, flatdark, bias files
      Tape is against light pollution only. Of course some sketch on it but working perfect.
      Lacerta guide cam exclude.
      Bank transfer only.
      2.660,-GBP (2.999,-EUR) + postage.
      <private contact details removed>
       
       










    • By daz
      Hi all
      I have the following filters for sale. Boxed and include UK postage. All are 1.25" and optically perfect.
      Baader 35nm H-alpha - £45  REDUCED TO £40 Altair #ND96 0.3 and 0.6 - £15 (pair)  
      Payment by bank transfer please.
      Thanks for looking!

       

       
       
       
       
       
    • By Desmond
      Hi,
      I recently spent my Xmas money on an L-Enhance filter as I have seen amazing results with this filter.
      I took it for a test run on the Y Cas Nebula last night (not the best night, but when is?)
      I managed to get around 43 mins of time.
      I normally shoot 1 min exposures with my 1000D modified camera but I thought I'd go for 90 seconds as the filter would reduce brightness? (any thoughts on exposure times here would be great)
      The results were not as great as I was hoping for - see below.
      O over stretched it just to see if I had captured the 'ghost'. He's there, but it turns out really grainy and not the nice subtle wispy nebula that I see from other folks.
      So my questions are:
      - is this a tricky nebula target?
      - What exposure times should I run? 
      - Is 43 mins way too little for this (or any) target?
      - any other advice???
      Setup is:
      Canon 1000D - modified
      L-Enhance filter
      Skywatcher 72ED Telescope
      Skywatcher AzGTI mount (AZ mode at the moment until I can get polar alignment working with SharpCap)
      Any thoughts, hints, tips greatly appreciated!
      Thanks in advance!
       
       

    • By Jananas07
      Hi! So Ive found some pictures from an arxiv report in a database which I need for my project and converted them to fits files (The picture on the left). The one that was used in the arxiv report (picture on right) is a zoomed in picture of a galaxy in that picture, where its clearly visible. However when I try zooming in on the exakt coordinates of the galaxy in the fits image, its just plain black. I want the picture "raw", that's why I saved it as fits and not their pdf picture from report. Someone suggested first stretching the image for a more detailed image but some filters had to be used though... the only thing I can find on the tables of the images is that filter F160W was used. I have no idea how to move forward now, completely stuck. Would appreciate some help! 
    • By dazza1639
      Christmas Eve I managed to get 5 hours on NGC2175 the Monkey Head nebula 

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