We've finally got our hands on the D4S, Nikon's long-awaited upgrade to its most advanced flagship DSLR. As part of our image quality testing for our forthcoming Nikon D4S review, we've shot a resolution chart, and frankly we were too excited to keep the results to ourselves, so here they are.

The D4S features the latest Expeed 4 imaging engine (compared with the D4's Expeed 3 device). This helps to facilitate the expansion to the highest sensitivity setting - an industry-leading ISO 409,600 (equivalent).

For a full explanation of what our resolution charts mean, and how to read them, check out our full explanation of our camera testing resolution charts.

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

ISO50

JPEG

ISO50

ISO 50, Score: 28 Click here for full resolution image

ISO100

ISO 100, Score: 26 Click here for full resolution image

ISO200

ISO 200, Score: 26 Click here for full resolution image

ISO400

ISO 400, Score: 26 Click here for full resolution image

ISO800

ISO 800, Score: 26 Click here for full resolution image

ISO1600

ISO 1600, Score: 26 Click here for full resolution image

ISO3200

ISO 3200, Score: 26 Click here for full resolution image

ISO6400

ISO 6400, Score: 26 Click here for full resolution image

ISO12800

ISO 12800, Score: 24 Click here for full resolution image

ISO25600

ISO 25600, Score: 22 Click here for full resolution image

ISO51200

ISO 51200, Score: 20 Click here for full resolution image

ISO12800

ISO 102400, Score: 20 Click here for full resolution image

ISO24800

ISO 204800, Score: 20 Click here for full resolution image

ISO409600

ISO 409600, Score: 20 Click here for full resolution image

RAW

ISO50

ISO 50, Score: 28 Click here for full resolution image

ISO100

ISO 100, Score: 28 Click here for full resolution image

ISO 200

ISO 200, Score: 28 Click here for full resolution image

ISO 400

ISO 400, Score: 28 Click here for full resolution image

ISO 800

ISO 800, Score: 28 Click here for full resolution image

ISO 1600

ISO 1600, Score: 26 Click here for full resolution image

ISO 32200

ISO 3200, Score: 26 Click here for full resolution image

ISO 6400

ISO 6400, Score: 26 Click here for full resolution image

ISO12800

ISO 12800, Score: 24 Click here for full resolution image

ISO 25600

ISO 25600, Score: 22 Click here for full resolution image

ISO51200

ISO 51200, Score: 20 Click here for full resolution image

ISO102400

ISO 102400, Score: 20 Click here for full resolution image

ISO204800

ISO 204800, Score: 20 Click here for full resolution image

ISO409600

ISO 409600, Score: 20 Click here for full resolution image