Matt Kloskowsi recently featured an impressive new Lightroom Plugin called Show Focus Point. The plugin works with the Adobe software to display to the photographer exactly where they tried to focus the image when they shot it. This works very well if a photographer goes through a session of shooting multiple images. Based on where the focusing point is, the photographer can then later tell which of the image(s) in the series is best in focus. It could be very useful to sports photographers, street photographers, wedding photographers or the average ordinary clutz that needs to take millions of photos in order to get that one right shot.
The software plugin essentially just opens a window pane that gives you information on where you focused and can even show the focusing points of Nikon and Canon cameras according to their website.. It’s completely free and works on both Mac and Windows computers. From what it looks like, the team tries to update the plugin when new cameras come out.
Give it a try.