The SmartView 3000 video magnifier is a low vision aid that enlarges objects, actions and text onto a display screen. Some key features of SmartView 3000 include the ability to : View your object or text in high contrast, black on white, or white on black depending on your preference.  View reading material from one of sixteen colored background/foreground combinations in the contrast best suited to your vision requirements. Use a 75Hz camera which provides a quicker refresh rate and less flicker . Control the clarity of the object you want to see using the manual focus.