Getting plate-solving status, please wait...
C27 Crescent Nebula-Ha-testing new spacer, Adel Kildeev

C27 Crescent Nebula-Ha-testing new spacer

Getting plate-solving status, please wait...
C27 Crescent Nebula-Ha-testing new spacer, Adel Kildeev

C27 Crescent Nebula-Ha-testing new spacer

Equipment

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Acquisition details

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Description

By the advise of Rheden I was changing backfocus of my scope, a field curvature is very annoying. Firstly, I decreased the backfocus by 5 mm - no way, it was getting worse, than I increased the backfocus by 3-4 mm (ZWO ASI 1600's manual claims that the distance from the body of the camera to the matrix is 6.5 mm, I always doubted this statement, looks al least 10 mm visually) AND ..... The miracle has happen, the field is almost flat (some small curvature in one corner), but it is a WAY better in comparison with the old spacing. I am very  happy

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Revisions

  • C27 Crescent Nebula-Ha-testing new spacer, Adel Kildeev
    Original
  • Final
    C27 Crescent Nebula-Ha-testing new spacer, Adel Kildeev
    B

B

Description: starless version

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C27 Crescent Nebula-Ha-testing new spacer, Adel Kildeev