I just bought myself a Rolleicord Ia to teach myself how to use a TLR camera, but info on the basics for this camera are pretty limited. I figured out how to load the film, but I am a little fuzzy on how far I need to wind to advance from frame to frame on the film. Also, it would be really helpful if someone had a description for each of the knobs and levers on this camera (or as close as possible). I see how to set the f-stop and the shutter speed, and how to actually take the picture. But I've been reading online and other models of the Rollei say there is supposed to be a counting mechanism for the film - I don't see one on this camera. Is there supposed to be one? Any advice or info would be greatly appreciated. Thanks!