Made of black Bakelite, these viewers Sterolist were manufactured in England in the 1950s The illuminated model was the English equivalent of the viewfinder Stereo Realist Red Button but had a major improvement, namely the ability to wider slide accept up European format film 7 Perforation. Excellent quality viewer shown below provides both an interocular adjustment (the ability to move vision lenses to match the spacing of the eyes of the user) as an approach. The viewer had double glass lens element providing a clear and sharp image. The display was fed with two batteries of 1.5 V of tamaño'D 'and the lamp is activated by pressing the red button on the back of the device. The Sterolist viewers are often found in wooden display boxes also have space twelve stereo views.
