It was taken with a Canon 6D + Tamron 600mm lens on a star adventurer tracker with some active guiding via a guidescope camera. Pretty basic setup for astrophotography :)
enhancing
enhanced image ready: https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg/1280px-Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg
(this one is taken by Hubble)