For our Mac users, here is a quick tip for determining the shot count (actuations) on a Leica M camera.

(Click an image
below to enlarge.)
  1. On a Mac, navigate to the most recent image taken with the Leica M camera using the Finder.
Open in Preview
  1. Right Click (or hold down Control + click) on the image and choose Open With > Preview.
Show the Inspector
  1. Open the Inspector by clicking on the Tools menu > Show Inspector or with the keyboard shortcut Command + I.
Get the Image Unique ID
  1. Click on the Information tab in the Inspector, then click on the EXIF tab. Locate the Unique Image ID (you may need to enlarge the window to see the full ID).
Open Calculator and Enable Programmer mode
  1. Open the Calculator app on your computer, and change to Programmer mode by clicking on the View menu > Programmer or using the keyboard shortcut Command + 3.
Enter the Unique ID
  1. Verify the 16 button is selected in the top right of the calculator, then enter in the Image ID. You do not need to enter all of the zeros, but make sure you enter everything to the right of the first non-zero digit. For example, 000000010000 would be 10000. In this case, we enter just 22D6A.
Convert for the Shot Count
  1. Click on the 10 button next to the 16 button you selected earlier. This converts the hexadecimal value into decimal form, giving us the shot count of the Leica M.