Sharpless 2-155 4x45min, Field Curvature Processed Out
San Diego, CA
Sharpless 2-155 in Ha, with field curvature processed out
using PhotoShop Lens Distortion (starfield is distorted as a result).
Apogee Alta U8300, Astrodon 3nm Ha, APM115/805.
4 x 45 minutes.