Specification: Magnification Ratio:1.08-1.6 Adapters for square mount to round one Anti-drop eyepiece Shockproof Package Compatible with most cameras,including Canon Nikon Sony,etc. Suitable for: Canon: D30/40D/60D/300D/350D/400D/450D/500D/550D/1000D/10D/ 20D/30D/5D/5D2/7D/EOS1 Nikon:D40/D50/D70/D70S/D80/D90/D100/D200/D3000/D5000/D7000/D1H/D1X/D2H/D2X/FA/F6/F75/F80/F801S/F90 F100 Pentax: K-M/K7/KX/K10D/K100D/K20D/K200D/*ISTDL2/*ISTDL/*ISTDS/ ISTD Sony: a100/a200/a350/a450/a500/a550/a700/a900 Olympus: E-300/E330/E410/E500/E510 Fujifilm: S2PRO/S3PRO/ S5PRO Samsung: GX10/GX20 Sigma: SD10/SD14 Minoltaz: ɑ5D/ɑ7D/x-700 Package Included: 1.08x-1.60x zoom viewfinder eyepiece X 1 Original Package