Stan, I have the mount for this lens that you referred to. It was also bought from a list member. I haven't used it much, but I can see it needs modification. A two piece ring spacer is positioned around the lens body and this spacer then fits into a ring receptacle and is retained by tightening one fingerscrew, this results in basically a two point contact between the spacer and ring receptacle. A similar mount (for a N***n lens, also sold without a mount) is made by Kirk. It's method of lens retention to mount results in a more positive, uniform retention. The mount I have definitely produces a more balanced assembly (camera body/lens), but it does not firmly attach to the lens and this leads to movement of the lens/camera body relative to the mount itself. It looks like I should be able to come up with something that will lessen this effect.
I have had the 300 mm f4.5 FA for several years and it is one of my favorites and most used. I have no complaints with it but the lack of balance does seem wrong. Kenneth Waller ----- Original Message ----- From: "Stan Halpin" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, November 18, 2003 9:44 PM Subject: Re: More *ist-D images [FA* 300mm] > on 11/18/03 7:52 PM, jmb at [EMAIL PROTECTED] wrote: > > > Stan, > > > > I wonder if a tripod mountable lens holding device for these has been > > invented? > > > > John > >> 3030 tripod head. The 300mm does not have a tripod mount, so it was hanging > >> off the 2X extender, just floating around in the breeze. For some shots > >> later I used the self-timer with mirror lockup but for these bird shots I > >> used neither a remote nor the timer. > >> > >> stan > >> > > The list member who sold me the lens also provided a reference to a shop > which will fabricate a tripod mount for this (or about any other) lens. I > have the info stashed away someplace but have not followed up on it... > > Stan > >
