The digital clear mag is designed specifically for high magnification and detailed examination of the macula and optic disc with a 3.89x magnification. This lens is an easy transition for those who are used to handling a 20D lens with a similar lens ring size and working distance but with an added advantage of high magnification. This lens is a great choice for detecting and monitoring the subtle changes in the optic disc morphology in patients with diabetic retinopathy, glaucoma and age related macular degeneration. Field of View – 38? / 49? Image Magnification – 3.89x Laser Spot Magnification – 0.26x Working Distance – 60 mm