I've a mate who does this for a living. Camera on tripod, two light sources on the subject at 45 degrees to the subject, one either side. Camera should be far enough away from subject to prevent distortion due to the small lens. You will have to find a way of dealing with the different sizes of photographs, some big, some very small.
Of equal importance is that they all show the correct size on the slideshow - some messing about with pixels will be necessary, and that they are all recognised by the software reading them. Please be consistent with file naming, and, if possible, check with the place where the slideshow will be held, to confirm. I once had to sit through a friends cremation where half the photos were "File not recognised", and the others were blocky, pixelated parts of photos.
All the scanners you can buy at any price point will be sufficient, but again, some correction for size and pixels will be necessary. The camera option is quicker, but slightly more hassle. If you can borrow a camera with a zoom lens it will make it easier.
Good luck. It's a faff, but appreciated by everyone afterwards.
The only thing I would add to the 'camera on a tripod' method is a darkroom easel - this will hold physical prints flat and in the same place, allowing a quicker turnover if you sort the prints into batches of the same size / orientation in advance.
I've a mate who does this for a living. Camera on tripod, two light sources on the subject at 45 degrees to the subject, one either side. Camera should be far enough away from subject to prevent distortion due to the small lens. You will have to find a way of dealing with the different sizes of photographs, some big, some very small.
Of equal importance is that they all show the correct size on the slideshow - some messing about with pixels will be necessary, and that they are all recognised by the software reading them. Please be consistent with file naming, and, if possible, check with the place where the slideshow will be held, to confirm. I once had to sit through a friends cremation where half the photos were "File not recognised", and the others were blocky, pixelated parts of photos.
All the scanners you can buy at any price point will be sufficient, but again, some correction for size and pixels will be necessary. The camera option is quicker, but slightly more hassle. If you can borrow a camera with a zoom lens it will make it easier.
Good luck. It's a faff, but appreciated by everyone afterwards.