I have never used it but my scanner has a transparency adapter and frame holders for scanning negatives.
The manual says this:
When scanning transparencies or photo negatives, it is necessary to use the
transparency adapter included with your scanner. The adapter changes the light source
for scanning from inside the scanner to the lid.
It also has frame holders for the negatives and the manual offers these tips:
Make sure the film is properly loaded into the frame holder and the frame holder is correctly positioned on the scanner glass.
Make sure you adjust the SOURCE in the TWAIN window to the appropriate TRANSPARENCY or NEGATIVE setting.
Since photo negatives and slides are almost always enlarged, make sure you use a higher scanning resolution for example, 600 dpi
hope that helped some
jjb