Have you seen this? You need high speed internet to watch the videos.
"The Virtual Lens Plant, it includes videos of lens elements being ground & polished and an EF 500mm f/4L IS being assembled."
www.canon.com/camera-museum/tech/l_plant/f_index.html Rob * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
