Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  62 Cyg  ·  IC 5068  ·  IC 5070  ·  NGC 6989  ·  NGC 6997  ·  NGC 7000  ·  North America Nebula  ·  Pelican Nebula  ·  The star 55 Cyg  ·  The star 56 Cyg  ·  The star 57 Cyg  ·  The star 60 Cyg  ·  The star ξ Cyg
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NGC7000 RGB (OSC) - The North America Nebula, andrea tasselli
NGC7000 RGB (OSC) - The North America Nebula
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NGC7000 RGB (OSC) - The North America Nebula

Getting plate-solving status, please wait...
NGC7000 RGB (OSC) - The North America Nebula, andrea tasselli
NGC7000 RGB (OSC) - The North America Nebula
Powered byPixInsight

NGC7000 RGB (OSC) - The North America Nebula

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Description

This has been a very long time in coming, decades in fact since I took my first shot at it (in the film days). As a road test for the Nikkor 300mm f/2.8 AFS-ED it didn't pass it with flying colurs (mostly due to me coming to grips with focusing very accurately at f/2.8, in the cold, and keep it that way) but I can see room for improvement. It is however clear that the optical centre of the lens is somewhat off to the left of image centre which means the outer right hand side has more than normal amount of off-axis aberrations, mostly 5th order coma. On the plus side, the left hand side is quite sweet with tight PSF.

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  • NGC7000 RGB (OSC) - The North America Nebula, andrea tasselli
    Original
  • Final
    NGC7000 RGB (OSC) - The North America Nebula, andrea tasselli
    E

E

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NGC7000 RGB (OSC) - The North America Nebula, andrea tasselli