1.51X view magnification makes it easier to find excellent views and obtain accurate focus. Ideal for nearsighted or farsighted users (up to 500 degrees), allowing clear viewing without glasses. Made with high-quality anti-fog optical glass; does not cause vignetting or reduce brightness after installation. Sits 15mm away from the camera after installation, providing comfort and keeping your face away from the screen. Includes 6 magnifier mounting bases, compatible with various DSLR cameras. Material: ABS Color: Black This 1.51X viewfinder magnifier is specially designed for DSLR photographers, offering convenience and clarity, especially for those who wear glasses. Magnification: 1.51X Item Size: 3.5 x 3.2 x 2.2 cm Compatibility: 6 different mounting bases fit a wide range of DSLR cameras, including: "N" base: Compatible with Nikon full-frame and APS-C DSLR cameras "C-EF" base: Compatible with Canon APS-C DSLR cameras "C-1D/5D3/7D" base: Compatible with Canon full-frame DSLR cameras "P" base: Compatible with Pentax and Samsung DSLR cameras "F" base: Compatible with Fujifilm, Kodak, Sigma, Leica R, and Olympus cameras "S/K" base: Compatible with Sony and Minolta cameras Package Contents: 1 x 1.5X Zoom Viewfinder Eyepiece 2 x Eyepatch 6 x Viewfinder Mount Base Note: Camera not included. Package includes only the items listed above. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error allowance: +/- 1-3 cm.