The top of the line viewers are equipped with an electronic slide dimmer and are available in 7 sizes. Features include electronic, instant start ballasts, infinite dimming, flicker free operations, and extremely uniform illumination. Suitable for reproducing transparent artwork and digitalizing slides by scanner. Color Control Classic Line Viewing Surface: 15 x 14 $845.00 Color Control Classic Line Viewing Surface: 23 1/2 x 13 1/2 $895.00 Color Control Classic Line Viewing Surface: 29 x 19 $1,295.00 Color Control Classic Line Viewing Surface: 34 x 14 $1,045.00 Color Control Classic Line Viewing Surface: 34 x 23 $1,395.00 Color Control Classic Line Viewing Surface: 43 1/4 x 14 $1,095.00 Color Control Classic Line Viewing Surface: 43 1/4 x 23 $1,595.00