Apologies if you already know this but if you're taking photos of gravestones, especially the hard to read, it's useful to take several from straight ahead and from angles, and some with flash at angles even on a sunlit day; these will often show details of the text that is otherwise hard to see with the naked eye. It's especially useful to have several photos as with a software package - many printers come with some sort of photo enhancement - you can play around with sharpness, contrast, brightness, colour etc. and this will definitely show detail you'd otherwise miss in a badly eroded or overgrown with lichen gravestone. It will also save that "I wish I'd taken a photo of that" syndrome at a later date. It's also useful to take photos in context, i.e. showing the gravestone in its surroundings - I did this with one ancestor only to discover later that another ancestor I didn't know about at the time was buried just a couple of graves away and this was included in the context shot.
