However , choice top list .It 's third series revolutionised mirrorless cameras video , quite literally turn night day maximum ISO ceiling 409,600.Its 14 stops dynamic range allow users capture incredible level detail even darkest shadows.As A7S popular video shooters , subsequent cameras leaning heavily direction.The headline resolution 12MP A7S III might sound rather low 're coming stills background , video users n't much use extra pixels , makes sense.Either way , less crowded sensor makes cleaner images high ISOs , great news low light.Still , use video want shoot stills , 'll get better value Canon EOS R6 , next choice . ( Image credit : Canon ) 02.Canon EOS R6 Incredible low-light focusing stabilisation make winner Specifications Sensor : 20MP CMOS full-frame sensor ISO range : 80-102,400 ( expandable 204,800 ) Lens : Canon RF-mount Image stabilisation : 5-axis in-body stabilisation Today 's Best Deals View John Lewis ( opens new tab ) View Canon ( UK ) ( opens new tab ) View Currys ( opens new tab ) Reasons buy + Focuses -6.5EV + 8-stop stabilisation Reasons avoid - Expensive 20MP - Dynamic range sometimes lacking While may technically reach dizzying ISO highs Sony A7S III , Canon EOS R6 makes number advancements one capable low-light cameras around .