Studio Comparison

Our latest test scene is designed to simulate both daylight and low-light shooting. Pressing the 'lighting' buttons at the top of the widget allows you to switch between the two. The daylight scene is shot with manually set white balance, but the camera is left in its Auto setting for the low-light tests.

Note: this page features our new interactive studio scene. Click here for instructions on the widget.

Compared to the Olympus E-M1, the GH4 does a better job of representing fine detail in its "low ISO JPEGs", but the difference disappears if you compare them in Raw mode. At higher ISO settings the two cameras take rather different approaches - the E-M1 image looks better at first glance, with better saturation and more pronounced edges. A close look shows the GH4 is actually retaining similar amounts of fine detail, they're just not emphasized as much.

At the very high ISO settings both cameras are struggling but the trend of Panasonic leaving fine-grained noise while Olympus goes for a smoother, but blotchy results, continues. In Raw mode, the results are still very similar.

The GH4 is a lower resolution camera than the Nikon D7100 but at low ISO, you can see it does similarly well, when compared at the same output size. At higher ISOs, you can see the D7100 is producing a more detailed image than the Panasonic, but effective noise reduction means it still produces a competitive result at very high ISOs in low light, despite higher levels of underlying noise in its Raw files.

As we've already seen, the GH4 just can't compete with the larger sensor of the Sony a7S, but its JPEG processing means it does well against competitors with Four Thirds and APS-C sensors.