u/One-Pomegranate-3926

Orion Crop from 50mm Untracked

Orion Crop from 50mm Untracked

https://preview.redd.it/55lchza444tg1.png?width=1233&format=png&auto=webp&s=709124565113e51f98e3a965f8200dea888edf02

This a screenshot
Acquisition & Processing Details

Equipment:

  • Camera: Sony a6000 (Unmodified)
  • Lens: TTArtisan 50mm f/1.2 (Manual)
  • Aperture: f/2 (Stopped down for star sharpness and 10-point diffraction spikes)
  • Tripod: Basic Manual Panhead K&F brand

Acquisition:

  • Focal Length: 50mm (Full-frame / No Crop)
  • Light Frames: ~825 x 3.2" (Total Integration: ~44 Minutes)
  • ISO: 3200
  • Calibration: 50 Darks, 50 Bias, 10 flats
  • Bortle Class: Bortle 3
  • Focusing: Bahtinov Mask on Alnitak using 11.7x LCD Magnifier

Processing:

  • Stacking: DeepSkyStacker (Kappa-Sigma clipping)
  • Background Extraction: Heavy gradient removal to pull the Witch Head (IC 2118) out of the background glow.
  • Color Calibration: Balanced for the distinct blue reflection of the Witch Head against the deep H-Alpha reds of Barnard’s Loop.
  • Final Touch: Levels/Curves in Photoshop to stretch the faint dust lanes without blowing out the Trapezium core in M42.

Starless editing in Siril using Starnet++ was also used. Minimum filters were also used in Photoshop. About a 500 percent enlargement from the original

reddit.com
u/One-Pomegranate-3926 — 10 hours ago
Orion Molecular Cloud Complex Untracked 50mm

Orion Molecular Cloud Complex Untracked 50mm

https://preview.redd.it/aqdlyuge14tg1.png?width=1005&format=png&auto=webp&s=66a15a6b2532064393a91094b4fa55b478c4cf4a

This a screenshot
Acquisition & Processing Details

Equipment:

  • Camera: Sony a6000 (Unmodified)
  • Lens: TTArtisan 50mm f/1.2 (Manual)
  • Aperture: f/2 (Stopped down for star sharpness and 10-point diffraction spikes)
  • Tripod: Basic Manual Panhead K&F brand

Acquisition:

  • Focal Length: 50mm (Full-frame / No Crop)
  • Light Frames: ~825 x 3.2" (Total Integration: ~44 Minutes)
  • ISO: 3200
  • Calibration: 50 Darks, 50 Bias, 10 flats
  • Bortle Class: Bortle 3
  • Focusing: Bahtinov Mask on Alnitak using 11.7x LCD Magnifier

Processing:

  • Stacking: DeepSkyStacker (Kappa-Sigma clipping)
  • Background Extraction: Heavy gradient removal to pull the Witch Head (IC 2118) out of the background glow.
  • Color Calibration: Balanced for the distinct blue reflection of the Witch Head against the deep H-Alpha reds of Barnard’s Loop.
  • Final Touch: Levels/Curves in Photoshop to stretch the faint dust lanes without blowing out the Trapezium core in M42.

Starless editing in Siril using Starnet++ was also used. Minimum filters were also used in Photoshop. I think the 44 min integration is a limitation, but I am quite satisfied with the fact that Barnard's Loop and the Witch Head Nebula are distinct from the background noise

reddit.com
u/One-Pomegranate-3926 — 11 hours ago