the earliest japanese slr for rollfilm was perhaps the baby super flex (or super flex baby), a 127 camera made by umemoto and distributed by kikōdō from 1938. this had a leaf shutter, but two years later came the shinkoflex, a 6×6 camera made by yamashita shōkai, with a focal-plane shutter and interchangeable lenses. however, japanese camera makers concentrated on rangefinder and twin-lens reflex cameras (as well of course as simpler, viewfinder cameras), similar to those of the western makers.