Stereo slide viewer stainless steel Hugo de Wijs. Lens holder chromed bronze. Made in 1989, serial number four. Size of the slide frame 2x 50x50 mm. Maximum sliding window: 36x36 mm. Suitable for slide between crystals, 50x50 mm standard frames. Lenses: diameter 23 mm. F = 60 mm achromat. fixed focus. Fixed base 62 mm (d.i.o.d.) Light distribution frosted glass, illuminated daylight. The lenses are not scratched or coated. The housing is free of scratches, the visor has not been used. Translation made with the translator www.DeepL.com/Translator Measures Viewer / Glass 3,5x12
