Have you ever seen a comparison of two different stacked images with different sub-exposures and was thought, "those don't look that different?" Well, they might not be that different after all! In this video, we'll see whether longer sub frames really are worth the trouble when you're shooting in narrowband under light polluted skies! Video on my updated SNR App: Recap: 00:00 Introduction: 00:30 SNR Theory: 02:03 Equipment, Target and Filters: 04:24 Longer Sub Frames?: 07:45 The Experiment!: 09:36 Gut Checks: 11:38 Only Integration Time?: 13:36 You Can Hire Me!: 17:50 Light Pollution: 19:09 My Ha Filter: 20:24 Does It Make Sense?: 21:25 The MT: 24:31 Become a buymeacoffee member to help choose which products I review: Affiliate Links: Skywatcher HEQ5 Mount Skywatcher 80mm F7.5 Doublet ZWO EFW mini filter wheel Optolong LRGB Filter Set ( ") Orion Reducer USB RJ45 Cable for Controlling Mount Raspberry Pi to control mount R Pi case with touch screen ZWO Autofocuser ZWO 294MM Pro Camera: HEQ5 Mount: (mine is Orion Sirius, which is equivalent) ZWO Filter Wheel: Optolong Filters (LRGB, SII, Ha, OIII): (the Ha and OIII narrowband filters are better than what I have) Skywatcher Evostar 80mm: (equivalent lens) USB RJ45 Cable: (connects mount to laptop directly; mine is a different brand, but this should do) ZWO Autofocuser: Reducer: (mine is Orion, but this should be equivalent) Join this channel to get access to perks: