Like regular film, you will see some degrading and flaws in the photo when you enlarge from digital. In fact, sometimes, it is worse because of the nature of digital (pixilating, blocky edges, separation of graduated lights or colours). Fuji's E900's...
Larry M has some good tips, and I agree that for larger prints, 150dpi is fine. So with that as a target, let's work backwards to determine the scan resolution of the different originals. For your 35mm originals (1x1.5 inches) you'll need to scan the...
The best format to shoot in - provided your camera gives you the option - is RAW. That has been called a 'digital negative'. JPEG is a 'lossy' format which means that each time you open it you can loose some of the digital information. That does not ...