www.astrocafe.hk

I seldom do wide field astrophotography. Perhaps this is my first attempt.

Date: 27-28/12/2016
Location: GUANGZHOU
Equipment: Nikon AF 105F2 DC @ F4, Canon 5D II (Astrodon mod), CLS, HEQ5Pro (Hyper tunned)
Photographic details: ISO 1600, 3 mins x 58 + 15 s x20, flat frames, dark frames, bias frames
Post-processing: PixInsight, PS

不知是否濾鏡或其他因素，感覺Ha以外的其他訊息可以再強一點。