Venidice 1.08x-1.6x Zoom Viewfinder Eyepiece Magnifier for Canon Nikon Pentax Sony Olympus Fujifilm Samsang Sigma Minoltaz Dslr Camera Magnification: 1.08x-1.60x Manual adjustment. The viewfinder magnifier adjusts the viewfinder's image at a rate of 1.08x to 1.58x and makes the viewfinder's image larger. Round horn-shaped eyepiece protects the skin around the eyes with comfortable texture 1.58x magnification to enlarge the viewfinder image can be easily and accurately diagonal, so that the viewfinder image larger. 1.08x-1.6x zoom viewfinder makes it easier to wear glasses and older people, and does not produce a sense of dizzy.