On 11/3/07, David Savage <[EMAIL PROTECTED]> wrote: > G'day All, > > As we all know one of the minor bad points of this lens, compared to > the F* version, is it's lack of tripod mounting collar . > > I'm a bit of a tinkerer, and I've roughly sketched up a collar design > with a thought to making one when I have some time. However, I was > recently doing some wandering around eBay when I noticed several cheap > tripod mount collars for use with various Canon lenses: > > <http://cgi.ebay.com.au/Tripod-Mount-Ring-for- > Canon-70-200mm-300-400mm-Lens- > L7G_W0QQitemZ130167704305QQihZ003QQcategoryZ29982QQssPageNameZWDVWQQrd > Z1QQcmdZViewItem> > <http://preview.tinyurl.com/2bueks> > > These units seem to lack the ability to rotate the lens from portrait > to landscape within the ring. Not really what I wanted. > > This got me Googling though, & I found some info on the genuine Canon > Tripod Mount Ring A II, for use with the EF 70-200 IS f4L , which has > this function: > > <http://www.the-digital-picture.com/Reviews/Canon-Tripod-Mount-Ring- > A-II-Review.aspx> > <http://preview.tinyurl.com/2gbbyx> > > Now from what I've managed to find, the inside diameter of this ring > is ~66mm. As luck would have it, the outside diameter of the FA* 300mm > f4.5 barrel is 66mm (Although the lens name plate does project out a > couple of millimetres) > > So my question: Has anyone here ever tried to use these two pieces of > kit together? Can any of our Canon owners confirm that it actually > works as described. > > Cheers & TIA, > > Dave >
I have the Canon 400/5.6 prime with similar foot and it is a very tight fit around the FA*300/4.5 and can only go on slipped over the end of the lens which they are not designed to do. They have a latching clasp clamp ring that is supposed to fit around the lens, clasp shut and then secured with a locking knob. Maybe the tripod rings for the 70-200/4's are a bit bigger than this one on my 400/5.6, if so they probably work. I might venture down to my local Canon dealer to see for myself. That is if they'll let me remove one to see if it fits the Pentax. JayT -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
