Compare Sony A1+600/F4+2x vs Olympus E-M1X+150-400/F4.5+1.2x and 1.4x. The Sony rig was mounted on a gimbal and tripod while the Olympus rig was hand-held.

Sony rig images

1/1000, F8, iso2000, 1200mm

1/1000, F8, iso2000, 1200mm

1/1000, F8, iso1600, 1200mm

1/1000, F8, iso2500, 1200mm

1/1000, F8, iso2000, 1200mm

Olympus images

1/2500, F7.1, iso800, 1120mm

1/2000, F5.6, iso500, 1000mm

1/2500, F6.3, iso1000, 1120mm

1/2500, F9, iso640, 554mm

1/1000, F8, iso500, 1400mm

1/3200, F6.3, iso1000, 1120mm