Is it worth to take DARK FRAMES ? How important are FLAT FRAMES ? DSO with ONLY LIGHT FRAMES ?

I show and example of a stacked image of M42 the Orion Nebula with full set of calibration frames: darks, flats and biases vs. a stack with only light frames to show you how important are dark frames, is it worth to take flat frames etc. Is it even worth to image DSO with only light frames? You can decide for yourself by looking at my examples. All stacks created by Siril. Stretching done in Adobe Photoshop. SIRIL VIDEO: ► -------------------------------------------------------------------- ► Don’t forget to SUBSCRIBE - new videos every week! -------------------------------------------------------------------- SHOT WITH: ► - Canon EOS R ► - Canon EF 70-300mm f/ IS USM ► - Sky-Watcher Star Adventurer ► - Pixel TC-252 external interval timer OTHER GEAR I USE (links affiliated): ► - Sony a7s III (King of low-light filmmaking and photography) ►