Hi, I've been intrigued for quite some time now about how to use flanged barrel lenses with a lens plate. I've seen quite a lot for sale on eBay, some old some newer, but I can't figure how one installs a shutter with the lens if the lens is to be mounted directly on the lens plate? What kind of shutter does one use with such lenses and where does it fit in the lens/shutter/lensplate set-up? Guy