Description: 1.51X view magnification, make it easier to for you find excellent views and obtain accurate focus. Good helper for short-sighted / long sighted people (within 500 degree), enable you to see view clearly without glasses. High quality anti-fog optical glass, do not create vignetting or affect brightness after installation. 15mm height away from the camera after installation, ease your organs and keep them away from the screen. 6 magnifier mounting bases, compatible with various DSLR camera. Specification: Magnification: 1.51X Item Size: 3.5 3.2 * 2.2cm / 1.4 * 1.3 * 0.9in Item Weight: 20g / 0.7oz (with covers) Material: Aluminum alloy + optical glass Compatibility: 5 different mounting bases fit for various DSLR camera, such as "N" mounting base: For Nikon (Full-frame & APS-C) DSLR Camera and etc; "C-EF" mounting base: For Canon APS-C DSLR Camera and etc; "P" mounting base: For Pentax Samsung DSLR Camera and etc; "F" mounting base: For Fujifilm, Kodak, Sigma, Leika R, Olympus Camera and etc; "S/K" mounting base: For Sony, Minolta Camera and etc. Package Includes: 1x 1.5X Zoom Viewfinder Eyepiece with Covers 2x Eyepatch 6x Viewfinder Mount Base