Functions:Viewfinder can provide excellent clear amplification scene, at the same time for video capture for users in daylight photography observed details on the shoot, and auxiliary focus, suitable for the elderly and vulnerable groups, macrophotography observation, can adjust the diopter, rubber eyecups can according to the using habit of the adjusting direction.The other screen is 3 inch, 3.2 inch single lens reflex camera and micro single camera.viewfinder magnification is 3 times the viewfinder lens material made of high quality optical glass, very high resolution. The viewfinder display is the original picture, the picture is not seen through the viewfinder scene not deformation, not fully displayed.High quality rubber eyeshields soft, more yutie viewfinder and face contact. The face of comfort, make good work.The 1/4 and 3/8 link at the bottom of the screw hole can be loaded on the three foot and shoulder bracket for the 3 and 3.2 inch LCD screen SLR camera.DescriptionLens:3 plece/groupMagnification:3 xtransmittance90%Lens aperture:40mmSupport LCD:universal design fits lcd screen up to 3.2 compatible with 3:2 or 4:3radio LCD screenMaterial: ABS, optical glass and high-quality soft rubberSpecifications: length: 7.2cm width: 5.8cm