I didn’t know how, however, and after having searched for software, spent some time on Google without really going anywhere, I learned a few things:

1. It’s called ‘shooting tethered’

2. You don’t need software you don’t already have.

For a simple setup, all you need to do is to set your camera to PPT and launch Image Capture.app (OS X). Here, you can press a button to shoot pictures and in theory you can auto-transfer and run an action (eg. ‘open in Preview.app’) upon transfer. Auto-transfer was flaky, so I went to Automator.

With a simple workflow (), you can take the shot, transfer the photo to a folder of choice and open it in Preview.app. Automator is a bit slow (on my machine), but it’s nice nevertheless.