Probably true. I imagine it has something to do with the arrangement of the elements in the lenses. I know the A2X-S works great with the A 400/5.6. Although on that lens, the L doesn't even fit due to its long nose. Paul On Jan 29, 2007, at 6:43 PM, Mark Cassino wrote:
> By chance I took a look at B&H's page on the Pentax 1.4x-L > teleconverter > today. There's a list of compatible lenses, but several are marked as > "Fits, but better performance can be achieved with other versions." I > assume these are lenses that would work better with the 1.4x-S > converter. > > I was surprised to see the A* 400 f2.8, F* 600 f4, and A* 600 f 5.6 on > this list. Oddly, the FA* 600 f4 is not so noted. > > See - > > http://www.bhphotovideo.com/bnh/controller/home? > A=details&Q=&is=USA&O=productlist&sku=40608 > > and click on the features tab. > > I mostly use the 1.7x AF adapter with my A* 400, but bought the 'L' > TC's > for use with it. Any thoughts on whether the S is really better with > some of the long glass? > > - MCC > > -- > - - - - - - - - - - - - - - - - - - - - > Mark Cassino Photography > Kalamazoo, Michigan > www.markcassino.com > - - - - - - - - - - - - - - - - - - - - > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

