With Shutter Notes you can take notes while you are photographing with any camera and mark a sequence of photos where the notes apply. This is done by taking a picture of the phone screen displaying the note, in the start and at the end of the sequence. This is useful on that situation when you use an accessory on a trip, like a ND filter for example, and when you are back home and start processing the photos you realize that you have completely forgotten what filter you used on each photo. In t