Acer SCAN Prisa 1240 UT

Transparency adapter included, Good price.

Slow, Manual adjustment required for decent image quality.

A fair USB scanner at a modest price...

There's a lot of competition in this area of the scanner market. Agfa, for example, produces a similar specification machine, although it's limited to 35mm film. If you are planning to scan larger format film stock then you'd be hard pressed to find...