...on the scanner in question. These have to have special features built into them to scan negatives well.
For the most part this is basically a glowing lid panel which illuminates above the negative (or transparency) as the scanning head passes under. Without the backlight (people used to make these lightboxes themselves in the past, when no flatbed scanners had this option) the scanning light simply doesn't provide enough light to batter through the neg, bounce off the lid, and then be picked up to present a usable scan. Once you have the scan you simply use whatever graphics application (Paint Shop Pro for example) to create a negative of the negative scan, which restores the colours correctly.
There are loads of sites you can visit which explain the tenchnicalities of getting the best results, such as :
or have a ; www.google.com : negative scanning help
It's always best to use a scanner which has a very high optical scanning resolution such as 4800dpi or above (ignore interpolated settings) as this helps to recover as much detail as possible from a small negative. However, please be aware that this small postage stamp will still generate a large file (likely to be a couple of MegaBytes approx) when it's scanned at that high setting, so don't try scanning an A4 picture at that high settings!
What is your experiences w/ using flatbed scanners for negatives. I am more interested in quality over speed. I guess my question is, will a flatbed scanner deliever a good enough scan for home use (not professional just a picky amature) and what are their limitations?