Bob und SF, Easy thing to fabricate anti "twist" fittings. I have made them for every camera I use. And the ONE tripod I use-- Tiltall! Jerry Bob Shell wrote: > On Tuesday, January 11, 2005, at 10:45 AM, Siu Fai wrote: > > >> They don't prevent the camera from twisting. > > > > Bob, what do you mean by twisting? > > > > Siu Fai > > > > > > > > > > Rotation on the tripod socket. > > Bob