The Uchenik (Russian: Ученик 'pupil', 'student') is a camera from the former Soviet Union. It is a sort of box camera, taking a 4.5/6cm picture, and produced around the 1930s. It had 80 mm meniscus lens.
Another camera with same name was in experimental production from 1952 to 1954. It was view 9x12 cm camera with Triplet Т-26 135 f/6.3 lens and leaf shutter 1/10" to 1/200" + BULB.