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