Two examples of Hinode/SOT G-band focus scan data. Upper half: focus scan from January 2010. The nine-image mosaic displays the exposures recorded during the scan at different focus positions. The three panels to the right illustrate the dependence of the image contrast on the focus position, the number of detected MBPs versus the focus position, and the number of MBPs versus the image contrast. The lower half shows the same for the focus scan taken in January 2014.