When I bought my new camera (see my last blog post) It came with a slightly sorry-looking TP roller blind shutter. Granted, there was no name stamped onto this thing, but the basic principles seem to be the same. Personally, never having owned one of these shutters, did not know how to operate one, so it was hard to establish which parts were there, and which were missing. After a good bit of digging the internet I found a few well-illustrated articles on how to replace the blinds and this helped me a great deal in figuring out how this thing works. So how does it work? When the thing functions properly, you just have to set the required shutter speed, you pull the spring to wind the mechanism and you press the shutter. Presto!