I would use a tripod collar if you have one as it was designed for it. The bigger question in my mind is your reasoning about using it as a walking around lens. The shutter speeds required for this lens handheld for most people are going to be a minimum of 1/500 sec. That's really fast film and/or really good lighting available. IMHO any lens focal length longer then 200mm belongs on a tripod.
Just my 2 cents Dave > -----Original Message----- > From: Alan Chan [mailto:[EMAIL PROTECTED] > Sent: Friday, July 09, 2004 1:17 AM > To: [EMAIL PROTECTED] > Subject: RE: Max weight of tele lens on *ist D > > > That was what I thought as well, until I did some test. I took a > few sets of > pictures (Z-1p, F*300/4.5, Arca Swiss B1 ballhead, Gitzo G1349 > tripod) with > and without the lens tripod collar at every aperture. To my > surprise, both > sets of slides with and without the 2s mirror-prefire turned out > to be less > sharp than without using the lens tripod collar (cable released > was used). > To confirm this finding, I then tried it on tripod again and > looking though > the viewfinder. When using the lens tripod collar, the lens/camera kept > bouncing slightly for quite awhile and is visible though the viewfinder. > Without the lens tripod collar, the vibration quickly settled. I have not > used the lens tripod collar with my F*300/4.5 since. Perhaps I should > purchase the FA* if I had this knowledge few years ago. But it is > true that > for a setup like this without the tripod collar, the choice of > tripod head > is vital. > > Alan Chan > http://www.pbase.com/wlachan > > >Pentax may have thought is was fine, but many users find the > lack of tripod > >collar a major oversight. I think structurally, the camera should be ok, > >but you will probably have some vibration issues to sort out. > > _________________________________________________________________ > Free yourself from those irritating pop-up ads with MSn Premium. > Get 2months > FREE* > http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1 > 034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines >
