As part of our review process we've implemented a new testing procedure. To test the Panasonic GH2 image quality, we shot our resolution chart, each with the Panasonic Lumix G Vario 14-140mm f/4-5.8 lens.

If you view our crops of the resolution chart's central section at 100% (or Actual Pixels) you will see that, for example, at ISO 160 the GH2 is capable of resolving up to 26/27 (line widths per picture height x100) in its highest quality JPEG files.

Examining images of the chart taken at each sensitivity setting reveals the following resolution scores in line widths per picture height x100:

test card

JPEGs

JPG iso 160

ISO 160: 26

JPG iso 200

ISO 200: 26

JPG iso 400

ISO 400: 24

JPG iso 800

ISO 800: 22

JPG iso 1600

ISO 1600: 22

JPG iso 3200

ISO 3200: 20

JPG iso 6400

ISO 6400: 16

JPG iso 12800

ISO 12,800: 16

Raw Files

RAW iso 160

ISO 160: 28

RAW iso 200

ISO 200: 28

RAW iso 400

ISO 400: 26

RAW iso 800

ISO 800: 26

RAW iso 1600

ISO 1600: 24

RAW iso 3200

ISO 3200: 24

RAW iso 6400

ISO 6400: 22

RAW iso 12800

ISO 12,800: 20