This 1.51X viewfinder magnifier is specially designed for DSLR photographer. Make it convenient and clear for photographer who are with glasses to spot scenes.Features: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.Specifications:Magnification: 1.51XItem Size: 3.5 * 3.2 * 2.2cm / 1.4 * 1.3 * 0.9inItem Weight: 20g / 0.7oz with coversPackage Size: 10.3 * 10.1 * 3.6cm / 4.1 * 4.0 * 1.4inPackage Weight: 83g / 2.9ozCompatibility:6 different mounting bases fit for various DSLR camera, such as"N" mounting base: Replacement for Nikon (Full-frame & APS-C) DSLR Camera and etc;"C-EF" mounting base: Replacement for Canon APS-C DSLR Camera and etc;"C-1D/5D3/7D" mounting base: Replacement for Canon Full-frame DSLR Camera and etc;"P" mounting base: Replacement for Pentax Samsung DSLR Camera and etc;"F" mounting base: Replacement for Fujifilm, Kodak, Sigma, Leika R, Olympus Camera and etc;"S/K" mounting base: Replacement for Sony, Minolta Camera and etc.Package List:1 * 1.5X Zoom Viewfinder Eyepiece with Covers2 * Eyepatch 6 * Viewfinder Mount BaseNote:Camera is not included.