M8 & M20 - The Lagoon and Trifid Nebulae (Ha-SHO)

HaO-SHO (Luminance with Ha & OIII layers, Color with Ha,OIII,SII - filters narrow band 12nm)

Ha:2h24, OIII:1h48, SII:30mn exposure time at 800 iso (Tournefeuille, France)

600/80 mm Refractor – 450D EOS filter removed - Ha, OIII, SII filters

Preprocessing with IRIS (Christian Buil software)

Image processing with Photoshop

Final touch with Lightroom

Done