lens unit from Lego - locical !
Andys' 2-lens unit (120 mm) with an interchangeable f/22 aperture (original Lego) and hinged shutter. Photography like 100 years ago: Adjust image section and focusing on matt screen, estimate / measure exposure time, close flap (shutter), replace focusing screen with photo paper cassette, take out slider, open shutter, count "twenty-one - twenty-two...), close shutter, dont forget slider, take out paper cassette go the lab, develop, fix, water, contact copy, develop, fix, water......