<> wrote in message news:4035603B.339.A32C2C@localhost... > I am pricing out digital cameras and one of the features on a Nikon is when you > switch lenses they say it has a patented burp to seal it. > Seems to have a seal made by Tupperware. They have patented the burp from their food storage containers. (confirms and holds seal) In the US, as a kid, I remember Tupperware sales parties were all the rage... Don't know if that ever caught on internationally. "Nikon includes a translucent Tupperware shield..."