Wasn't that a Bay II that has two diferent spaces between lenses depending on model. I know I have a 3.5 E and 3.5 F that use different caps because of the lens spacing. In a message dated 3/8/2005 3:36:22 PM Eastern Standard Time, dpurdyphoto@xxxxxxxxxxxxx writes: That is what I figured though someone on this list last year had gotten a lens cap that fit the bayonet but the distance between the lenses was wrong. I can't remember exactly what models they were talking about. I got a pretty good deal on a brushed aluminum lens cap but my camera is at Oceanside for a few more weeks so I can't try it. thanks Dennis