For reason , I compare camera models four different categories—Full Frame , APS-C , 4/3 , Compact Cameras one inch smaller sensors.Sony a7 III BEST FULL FRAME FOR LOW LIGHT Megapixels : 24MP , Sensor Size : Full Frame , Weight : 650g ( 1.43lb ) , Size : 127 x 95.6 x 73.7mm ( 5 x 3.8 x 3″ ) , Stabilized Canon 5D Mark IV BEST FULL FRAME DSLR FOR LOW LIGHT Megapixels : 24MP , Sensor Size : Full Frame , Weight : 650g ( 1.43lb ) , Size : 127 x 95.6 x 73.7mm ( 5 x 3.8 x 3″ ) , Stabilized Fujifilm X-T3 BEST APS-C MIRRORLESS FOR LOW LIGHT Megapixels : 30MP , Sensor Size : Full Frame , Weight : 650g ( 1.43lb ) , Size : 127 x 95.6 x 73.7mm ( 5 x 3.8 x 3″ ) , Stabilized Nikon D7500 BEST APS-C DSLR FOR LOW LIGHT Megapixels : 24MP , Sensor Size : Full Frame , Weight : 650g ( 1.43lb ) , Size : 127 x 95.6 x 73.7mm ( 5 x 3.8 x 3″ ) , Stabilized Olympus E-M1 Mark II BEST MICRO 4/3 FOR LOW LIGHT Megapixels : 20MP , Sensor Size : Micro 4/3 , 574g ( 1.26lb ) , Size : 134 x 91 x 69mm ( 5.3 x 3.6 x 2.7″ ) , Stabilized Olympus E-M10 Mark II BEST RUNNER UP MICRO 4/3 Megapixels : 16MP , Sensor Size : Micro 4/3 , 390g ( 14oz ) , Size : 119.5 x 83.1 x 46.7mm ( 4.7 x 3.3 x 1.8″ ) , Stabilized Sony RX100V BEST COMPACT FOR LOW LIGHT Megapixels : 24MP , Sensor Size : Full Frame , Weight : 650g ( 1.43lb ) , Size : 127 x 95.6 x 73.7mm ( 5 x 3.8 x 3″ ) , Stabilized PANASONIC LUMIX LX10 RUNNER UP COMPACT Megapixels : 24MP , Sensor Size : Full Frame , Weight : 650g ( 1.43lb ) , Size : 127 x 95.6 x 73.7mm ( 5 x 3.8 x 3″ ) , Stabilized Best Low Light Cameras Best Full Frame Camera Low Light 1 .