As part of our image quality testing for the Sigma SD1 Merrill we've shot our resolution chart.

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 100 the Sigma SD1 Merrill is capable of resolving up to around 24 (line widths per picture height x100) in its highest quality JPEG files.

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:

JPEGs

Sigma SD1 Merrill review

Sigma SD1 Merrill review

ISO 100, score: 24 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 200, score: 24 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 400, score: 22 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 800, score: 22 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 1600, score: 20 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 3200, score: 18 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 6400, score: 18 (Click here to see full resolution image)

Raw

Sigma SD1 Merrill review

ISO 100, score: 24 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 200, score: 24 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 400, score: 22 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 800, score: 22 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 1600, score: 20 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 3200, score: 18 (Click here to see full resolution image)

Sigma SD1 Merrill review

ISO 6400, score: 16 (Click here to see full resolution image)