Club visit to Lehmann’s in Stoke

Lehmann-visit

Following on from their presentation at a club night, a dozen members went along to Lehman’s on Saturday morning. This was to see what goes into checking and calibrating lenses and digital camera sensors. Once we were assembled we first saw the Canon DIA calibration process that matches cameras and lenses together by rewriting data within the equipment. The process is done for the horizontal, vertical and diagonal orientations of the Auto focus sensors. It isn’t uncommon for the camera to decide to use different…

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