Question about Sigma USB Dock for Canon EF bayonet

It is not complicated to adjust a lens with the station, but it is necessary to be meticulous and to have an adjustment chart to carry out these operations. Example with the 24-105 4L DG on an EOS90D: If we take an adjustment scale of +20 to -20 units with the Sigma software and on adjustment ranges at 24mm, 50mm, 70mm and 105mm (as recommended) at distances of 45cm 90cm 1.80m and infinity, that's no less than 640 pictures to take to get all the evaluation values and to be able to correctly adjust the AF of your lens. But the result is absolutely incredible. And this adjustment will obviously only be for the pair of camera lenses with which the adjustments have been made. So it's a very long job but oh so rewarding.