Product Features Compatibility |Canon 18 mm adapter for: Canon 10D, 20D, D30/D60, 300D, 350D, 400D, Digital Rebel, XT, XTi, EOS10, 66, 88/88QD, 100, 300/300V, 500/500N, 700/750, 850/888, 1000N/1000FN, 1/1N/1D/1V |Canon 22 mm adapter for: Canon EOS3/30/33, 50D/50E/55 |Nikon 22 mm adapter for: Nikon D1, D50, D70, D70s, D100, FM10, F55, F65, F80 |Minolta: no adapter is needed |Pentax: no adapter is needed for SP, M, K, Z, P, MZ|Fujifilm: S3 Pro, S2 Pro, S1|Leica|Olympus Technical Details |Lens Construction:| 9 elements in 5 groups, high quality glass roof prism.|Magnification:| 1X and 2X |Angle of rotation:| 360 degrees |Diopter adjustment:| Built-in (+/- 4) for variations in eyesight |Eyepiece fittings:| Canon EOS, Nikon, Minolta, Leica, Pentax & Olympus|Adapter:| Plastic slot-in type |Dimensions:| 60 x 35 x 85mm|Weight:| 82g