For our DxOMark lens reviews, we evaluate the performance of interchangeable lenses for cameras equipped with sensors that can capture images in RAW format. In this article, we explain how we test for different criteria in the DxOMark image quality test lab and how the test results translate into sub-scores and the final DxOMark lens score.
PMA 2009 was a show distinctly light on noteworthy announcements, but one of the most technically interesting developments may well have slipped under the radar of many enthusiast photographers. Canon introduced two new perspective control lenses to its TS-E (‘Tilt and Shift for EOS’) range, in the shape of the TS-E 24mm F3.5 L II and the TS-E 17mm F4L. But while the latter quite naturally grabbed the limelight as the widest-angle perspective control optic ever made for an SLR system, both feature a significant improvement over existing mainstream designs.