Eta Carina Nebula in Hydrogen Alpha
FLI Proline 16803,AstroPhysics 140mm F7.5,Astrodon 5nm Ha filter
20 minute subexposures, PMX mount, STi guider through a MMOAG.
PemPro PEC curve running at around 1.5 arc seconds accuracy. Superb seeing conditions. One of the sharpest images I have ever taken.
full exif