The confirmation phase can generate 100 to 500 images depending on the equipment being tested!Īt the end of these two analytical phases, the data are compiled in a file, the DxO lens module. They check that lines are straight no matter the focal length or distance and that objects, such as a blue sky, are evenly lit no matter where they are located in the frame. DxO experts verify this data by taking a series of outdoor photos. The lens/camera pairs are tested in real-life conditions to make sure the results are as close to perfect as possible. To ensure the mathematical modules are correct, this step is followed by a confirmation phase. These defects are then mathematically modeled using a range of shooting parameters, including aperture, focal length, distance, and more, for both RAW and JPEG images. Next, four defects are evaluated, specifically optical vignetting, geometric distortions, lateral chromatic aberrations, and perceptual blur, which plays a key role in correcting a lack of sharpness in the lens. This is done by taking photos of specific targets in the controlled environment of the DxO laboratory and performing a series of measurements. The first phase involves calculating the optical measurements of the lens. It includes two phases-a measuring phase followed by a confirmation phase. The process for creating a DxO lens module is complex and requires extreme precision.
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