Everyday flatbed scanners don't work to scan slides and negatives because they need to be backlit — but with just a bit of cardboard, you can redirect some light, and make it happen.
If you have old negatives or slides that you want to preserve digitally, you probably know that just throwing them on your flatbed scanner won't work. You need a bright light source that comes from behind the negative and the multi-function printer/scanner you use to print coupons is seriously lacking in that department. However, a new tutorial from Craft Magazine shows you how you can hack up a bit of silver cardboard, and get you film negatives onto your computer.