The Super Prism™ is designed for the artist or designer who needs the best in image clarity and accuracy. Ideal for working from a variety of challenging originals like photographs, half tones, and highly detailed drawings. Features a 3-element, color corrected lens for extra sharp images and increased brightness. This Super Lens enlarges originals from 3 to 20 times. Includes extra accessory lens to extend the range from 3 times enlargement down to 80% reduction. Includes 500-watts of photo quality lighting for a whiter and brighter image. Magnetic door latches and a spring clip keep copy securely in place. Generous 7" x 7" (18 x 18 cm) top-loading, glass covered copy area makes for easy placement of large copy, books, or small 3-D objects. A dual cooling channel system and thermal overload circuit protect originals from overheating.