Re: Hi, I'm new here and need advice
my semi-rule of thumb is, the worse the image, the higher the resolution of the scan needed. if the image is already in decent shape, 300 is ok for most work. 600 is better and would be a good standard to set for oneself. 1200 or more is where the image is just really faded, damaged, stained, etc. you want to make sure you pick up every possible detail. for slides and negatives i dont use anything under 1800.
another option is if you have a nice digital camera. a 3.1 megapixel is roughly equivalent to a 300 ppi scan, a 6 megapixel roughly comparable to a 600 ppi scan. i say 'roughly' here because i've never actually sat down and compared the two side to side. but, i recently bought an 8 megapixel camera and i could easily use this instead of a scanner for almost anything except slides or negatives.