Protecting and deleting images

There are a few different philosophies about deleting images.…Some people like to delete images that they think are bad, so that they don't…drown in image a lot when they start their postproduction process.…Other people say you should never delete an image, because you never know…whether it might be useful or not, later.…For the sake of this discussion, let's split the difference, and say that there…will occasionally be images that you know will have zero utility later; those…images where your finger is in front of the lens, or you left the lens cap on, for example.…Your camera provides a number of ways to delete images, as well as to lock…images, so that they can't be deleted.…

The easiest way to erase images is, when you're in Playback mode, simply hit…the trashcan button.…This is the delete button; it pops up a menu asking if you want to erase.…If I want to delete a whole bunch of images, though, that's going to take a…while to scroll though images, and hit the delete button, and confirm, so I have…