A tip for y’all today. If you take digital pictures, get Exiftool.
Exiftool is a free utility by Phil Harvey that allows you to see (and even alter, but seeing is the main thing) the entire range of EXIF data embedded in your image. Not just what your camera maker wants you to see – no: everything. Hundreds of fields, like the exact zoom setting of your lens. The focus spot you used. Much, much more.
ExifTool is a command line utility and it’s free, from here (link).
(Additional tip: open a command line (terminal) window, type “exiftool” and a space, then drag the image you want to know about from your desktop into that command line window. This avoids the need totype long complex filenames.)