IMG_8088 by Scott --, on Flickr Got this Retina IIc today. Shutter doesn't cock, but nothing obvious inside the shutter. The advance lever isn't turning the cocking gear inside the shutter. Opened the top. So, the teeth are clearly boogered, but the advance lever action is smooth. It just doesn't cock the shutter. Is this the root cause, or is it possible there's something else amiss here.