Suitable for digital SLRs and digital compacts with front lens thread. Attaches to the filter thread of the lens. 52 mm connecting thread. 58 mm adapter ring included.\nDetachable achromatic 10 dioptre macro lens, can also be used separately. A lens with a focal length between 80 and 120 mm (based on full-frame sensor) is required to achieve full size copies, larger frames require higher focal length.\nIncludes holder for two 35 mm slides.