New MTF-based calibration allows testing at higher resolutions
Traditionally, MTF testing using paper targets has assumed that both the printing on the target and the paper used for the target are perfect and present an ideal black- & white edge with infinite resolution. Unfortunately, ink or photographic edges are never perfect and paper always has some of its own texture, with the result that, up to now, MTF for cameras and lenses have not been accurately measured. In DxO Analyzer v6, we have analyzed and measured the MTF of our test targets. Analyzer uses this correction factor to correct the results of its MTF tests, so that the results more accurately reflect the real MTF of the device being tested. This additional accuracy is particularly important as sensor resolution continues to increase.
Contact us for more information