Finding optimal grating placement

  • Maxim DL 5, APT User
  • Cooled camera to -10C
  • He lamp
  • For towards with centred grating, brightest line chosen at 4.8mm
  • For away with centred grating, brightest line chosen at 4.9mm
  • Blaze arrow towards camera focused at 21.69mm and 3.21mm
  • Best position is for blaze arrow pointed at camera, with an offset to the left of a couple of mm
  • Glued in position

  • Focus distance scan
  • Rotation at 3.5mm when doing focus scan
  • Focus rotation angle scan
  • Focus length at 21.69mm when doing rotation scan

  • Asymmetry scan
LogBookAstronomyEntry0124 -- JamesAngthopo - 01 Dec 2016
Topic attachments
I Attachment Action Size Date Who Comment
Compressed Zip archivezip Grating.zip manage 3364.1 K 01 Dec 2016 - 12:20 JamesAngthopo Scans of blaze arrow facing away and towards camera

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Topic revision: r4 - 02 Dec 2016 - WillBurrows

 
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