Stan, responses below... Kenneth Waller
----- Original Message ----- From: "Stan Halpin" Subject: Re: More *ist-D images [FA* 300mm] > This is a laggardly response Ken... I still have the 300mm and occasionally > think I really should do something about a lens-collar-mount. I bought the > lens from Peter P. in Colorado, he had had a custom built tripod mount for > it, but sold that separately. Is that the one you bought? Yes it is. > I have considered going to a local machinist, or into my own "workshop" and > making a simple L-shaped bracket that would attach to the camera, extend > forward and then up to support the lens from the bottom. A 1/4-20 hole > drilled in the bracket would allow me to mount it on a tripod... Does this > make sense? Sounds feasible, but I suggest you might want to think about adding some means of cradling/securing the lens to the end of the bracket. And obviously you'd want to locate the 1/4-20 hole to achieve a neutral balance of the lens/mount. > Stan > > on 11/20/03 8:04 PM, Kenneth Waller at [EMAIL PROTECTED] wrote: > > > 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 > >> > >> > > > > > >
