Image stabilisation Image stabilisation make pictures less shaky.It ’ essential ’ going use tripod good camera support , ’ useful shooting handheld.The effective stabilisation , featured cameras like Panasonic GH5 , combines lens-based optical stabilisation ( OIS ) sensor-based body image stabilisation ( IBIS ) .Sensor size Larger better , point.The bigger sensors mirrorless cameras large sensor video cameras usually better low light.They also let get shallow focus effects.But news events shooters , greater depth field get small-sensor camera useful.Mirrorless cameras DSLRs come three main sensor sizes : full frame , APS-C Micro Fourth Thirds ( MFT ) : MFT sensors smallest.This means cameras lenses compact convenient , less good low light.APS-C around size 35mm movie film frame.It ’ better MFT shallow focus low light .