Move the image by mouse. Click on an image to bring up a larger version. Zoom in and out. Adjust the size of the image to the screen size. Information on the database record.
Zoom bar = the adjuster for an optimum focus of the image is on one of the horizontal bars.
If the image is larger than the screen as a result of zooming then the
area marked red within the navigation window on the bottom right
indicates the section displayed of the whole image. The red area can be
altered with the mouse.