This beautiful camera is quite rare but it was incomplete and very dilapidated when it was offered to me. I restored it as close to reality as possible. This Krauss Eka is therefore fully functional (shutter, diaphragm, focus) but only at the single speed selected because I can no longer select the other speeds. The Eka was designed for a non-perforated 35 mm film reel and allowed 100 shots to be taken.