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Rosette Nebula (Caldwell 49), Gnosis
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Rosette Nebula (Caldwell 49)

Revision title: 4K crop

Getting plate-solving status, please wait...
Rosette Nebula (Caldwell 49), Gnosis
Powered byPixInsight

Rosette Nebula (Caldwell 49)

Revision title: 4K crop

Equipment

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Acquisition details

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Description

First light for this lens. 40 minutes of subs just to get an idea whether the lens is any good. It has nasty looking astigmatism at f/2 that cleans up pretty quickly when stopped down. At f/5.6, as used here, it seems to look pretty good apart from some tilt-induced smearing of stars in the upper regions, and some chromatic aberration that I'm hoping can be cured with some backfocus adjustment.

Comments

Revisions

  • Rosette Nebula (Caldwell 49), Gnosis
    Original
  • Final
    Rosette Nebula (Caldwell 49), Gnosis
    B

B

Title: 4K crop

Description: Cropped into a 4K desktop background because the full image isn't very aesthetic since it was framed for testing purposes.

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Sky plot

Sky plot

Histogram

Rosette Nebula (Caldwell 49), Gnosis