As part of our image quality testing for the Olympus E-PM1, we've shot our resolution chart with the Olympus M. Zuiko 14-42mm f/3.5-5.6 II lens mounted.

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 200 the Olympus E-PM1 is capable of resolving up to around 24 (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:

Olympus e-pm1 resolution iso 200
Olympus e-pm1 resolution iso 200

Olympus e-pm1 resolution iso 200
Olympus e-pm1 resolution iso 200

ISO 200, score: 24 (see full image)

Olympus e-pm1 resolution iso 400
Olympus e-pm1 resolution iso

ISO 400, score: 24 (see full image)

Olympus e-pm1 resolution iso 800
Olympus e-pm1 resolution iso 800

ISO 800, score: 22 (see full image)

Olympus e-pm1 resolution iso 1600
Olympus e-pm1 resolution iso 1600

ISO 1600, score: 16 (see full image)

Olympus e-pm1 resolution iso 3200
Olympus e-pm1 resolution iso 3200

ISO 3200, score: 16 (see full image)

Olympus e-pm1 resolution iso 6400
Olympus e-pm1 resolution iso 6400

ISO 6400, score: 14 (see full image)

Olympus e-pm1 resolution iso 12800
Olympus e-pm1 resolution iso 12800

ISO 12800, score: 12 (see full image)

Raw images

Olympus e-pm1 resolution iso 200
Olympus e-pm1 resolution iso 200

ISO 200, score: 24 (see full image)

Olympus e-pm1 resolution iso 400
Olympus e-pm1 resolution iso 400

ISO 400, score: 24 (see full image)

Olympus e-pm1 resolution iso 800
Olympus e-pm1 resolution iso

ISO 800, score: 22 (see full image)

Olympus e-pm1 resolution iso 1600
Olympus e-pm1 resolution iso 1600

ISO 1600, score: 16 (see full image)

Olympus e-pm1 resolution iso 3200
Olympus e-pm1 resolution iso 3200

ISO 3200, score: 16 (see full image)

Olympus e-pm1 resolution iso 6400
Olympus e-pm1 resolution iso 6400

ISO 6400, score: 14 (see full image)

Olympus e-pm1 resolution iso 12800
Olympus e-pm1 resolution iso 12800

ISO 12800, score: 12 (see full image)