i remember seeing somewhere a lens that had a large set aperture (1.8) and somehow claimed to have such a great DoF that it did not need focusing. so basically it was a lens that could let in as much light as a 1.8 lens, but it's DoF was similar to a lens set at f22 or f32. is that possible? it wasnt an incredibly wide lens, i think it was around 30mm, so that wouldnt explain it. so is there any way that can somehow be done?