Peter, Not from me , old buddy. I just use 'em, I don't worship them. It won't make the good reverend feel any better to know the minutiae of 12/24, glass focal plane, half moon strap hangers und so weiter. Jerry "Peter K." wrote: > Ken, While others may offer some additional notes here is what I know. > The Rolleiflex 2.8F and 3.5F of 1958 were the first Rolleiflex TLRs > with a coupled exposure meter.There were actually 3 variations on this > model before 1960.The first model had a newly developed Compur shutter > and was limited to production of 20,000 units.The next 11,000 units > were a design with older style shutter and aperture controls and had a > certain stiffness that many users criticized that forced F & H to > change to a third version with a smooth operating bevel-geared > differential. The 3.5 version of this model also received a newly > designed Planar lens of six elements, followed by a new Schneider 3.5 > Xenotar with six elements.This was allegedly to improve the resolving > power since F & H were of the opinion that the older style 5-element > 3.5 lenses did not live up to expectations.The 2.8 Zeiss and Schneider > lenses remained unchanged. This was the last of the famous TLRs to be > produced from 1960 through 1981. Kodak introduced 220 film in 1965 > so the 12/14 version would have had to come after that, precisely when > I am not sure, but I know others will of course provide you with more > detail whether you want it or not. > > Carlos, Jerry, your turn. :-) Peter K > > ---------------------------------------------------------------- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.371 / Virus Database: 267.14.9/217 - Release Date: > 12/30/2005 >