Orion Constellation (135mm)

My Sony A7S was recently defiltrated and I wanted to test it on a classic object from the night sky, the Orion constellation. I have three lenses (Samyang F1.4/24mm, Zeiss Loxia 2/50mm, Samyang F2/135mm) for astrophotography. I use iOptron SkyTracker Pro but I do not know enough how to do polar alignment so I limit myself to 10s subs for 135mm lens. Here is the result with only 4 min exposure.

 

Astro Modified Sony A7S (Astrodon)

Samyang 135/F2 to F2.8

iOptron SkyTracker Pro

24x10s (4min), ISO6400

Processing : DeepSkyStacker, Fitswork, RawTherapee

 

We can easily recognize :

- The Orion Nebula (M42)

- The Horshead Nebula (Barnard 33)

- The Flame Nebula (NGC2024)

But the exposure is too short to see the Barnard's Loop (Sh 2-276) (bottom right) and the Witch Head Nebula (IC2118) (top left).

 

Done