Toolbox

Advanced

Compare cameras
Compare lenses
Keep me posted Forum Twitter Facebook
Keep me posted
RSS

 

All about DxOMark

What is DxOMark? | Lens scores | Sensor scores | In-depth measurements | Glossary | Company

What is DxOMark?

DxOMark is the trusted industry standard for camera and lens independent image quality measurements and ratings. For years we have established our reputation for the best:

  • Rigorous hardware testing
  • Industry-grade laboratory tools
  • Database of thousands of camera-lens test results

DxOMark lens scores

The overall DxOMark Score is obtained by combining a series of scores that indicate the image quality of lenses mounted on different camera models.

  • Three scores correspond to the following photographic conditions: night or sports scene, landscape, and portrait. In photographic parlance, we call these conditions use cases.
  • Five scores are based on well-known optical characteristics or metrics: resolution, distortion, vignetting, transmission, and chromatic aberrations.

DxOMark sensor scores

To help photographers rank and compare photographic equipment, DxOMark provides four scores showing camera sensor image quality performance:

DxOMark in-depth measurements

Learn how DxO Labs tests camera sensors and lenses and how the DxOMark scientific measurements and protocols are defined.

We measure the performance of camera sensors that are capable of producing RAW images, be it in professional, semi-professional or consumer-level categories. We also measure the performance of interchangeable lenses for cameras equipped with such sensors.

DxOMark has many unique features, two of which are that (1) we perform sensor measurements on RAW images and (2) we test each lens on every camera on which it can be mounted. Why do we do this?

A detailed look at DxOMark's image quality testing protocols, including laboratory conditions and setup, methods, test-specific tools, and software that DxO Labs developed and uses to ensure scientific, bias-free data and repeatable results.

Glossary

Definitions of the digital photography terms and the DxOMark specific terms that we use throughout the site.

DxOMark, the ultimate source for digital camera image quality

DxOMark and its corporate partnership with DxO Labs

DxO Labs and DxOMark: What is the difference?

Here are the terms and conditions governing your access and use of the DxOMark website. By using the Site, you are agreeing to be bound by these conditions of use.