The Micro Focus Finder provides a highly magnified image which snaps into & out of sharp focus & is bright, even at large magnifications. It is 6in (15cm) high & adjustable for individual eyesight. A shutter protects the mirror when not in use & a lens cap protects the high quality lens. Allows focusing on actual grain of negative; Adjustable for individual eyesight; Lens & mirror protected when not in use.