1.51X magnification, easier to find views and obtain accurate focus.Good helper for short-sighted / long sighted people (within 500 degree), enable you to see clearly without glasses.High quality anti-fog optical glass, do not create vignetting or affect brightness after installation.15mm height from the camera after installation, ease your organs and keep from the screen.6 magnifier mounting bases, compatible with DSLR camera.material:ABScolor:blackThis 1.51X viewfinder magnifier is specially designed for DSLR photographer. convenient and clear for photographer who are with glasses to spot scenes.Magnification: 1.51XItem Size: 3.5 * 3.2 * 2.2cmCompatibility:6 different mounting bases fit for DSLR camera, such as"N" mounting base: For (Full- & -C) DSLR Camera and etc;"C-EF" mounting base: For -C DSLR Camera and etc;"C-1D/5D3/7D" mounting base: For Full- DSLR Camera and etc;"P" mounting base: For DSLR Camera and etc;"F" mounting base: For , , , Leika R, Camera and etc;"S/K" mounting base: For , Camera and etc.Package Contents:1 * 1.5X Zoom Viewfinder Eyepiece2 * Eyepatch6 * Viewfinder Mount BaseNote:Camera is not included.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.