‘ Full frame ’ cameras usually give best low light performance ( ultra-shallow focus , need ) .But ’ expensive bigger , heavier lenses.I ’ really recommend unless ’ sure need them.Recording format Check camera records format editing program handle.You may need 1080p HD , filming 4K ‘ ultra high definition ’ advantages.4K footage look better even downsized 1080p , also gives option cropping ( eg mid shot closeup ) edit.Some cameras record higher quality video like 10 bit 4:2:2.These take space ( demanding computer ) ’ easier correct adjust edit.If ’ planning film material broadcast , check format requirements broadcaster.Things ignore Special effects.If want , add edit film.Digital zoom. ‘ 200x digital zoom ’ sounds great , cameras ’ way electronically blowing middle image .