What is the maximum allowable slide frame thickness for the OpticFilm series to operate without issues?

The frame thickness is max. 2.5 mm. Otherwise the frame may damage the slide holder.

*Note: Although mounted slides thicker than 2.5 mm may seem to fit into the film holder, they might not sit at the correct height. This can cause the scan to be blurry or out of focus, as the film isn't perfectly aligned in the scanner.