stereo camera plates 8 x 16 cm with interchangeable charger, lenses: Krauss Protar Zeiss 6.3 / 107 mm, diaphragms iris, old scale from 0.4 to 16 mm, shutter: Decaux guillotine two lamellae for 5 times ( does not work), setting distance of 1.5 m?, visor Newton, panoramic images possible by moving a lens to the center with automatic folding of the wall.