Originally posted by LesDMess The major advancement of the F was no more stop down metering required as it had an aperture position linkage that when used with a proper Takumar will allow open aperture TTL metering. I am not really sure how many of these Takumars were released but of course this was rendered moot with the release of the K mount a couple of years later. Still has stop down metering when using older lenses.
Correct. I wasn't really addressing the differences between the models I own, however -- I was just stating that, far as I know, the only difference between a "Honeywell" and an "Asahi" is the name stamped on the top cover.
Not sure, either, how many SMCTs were made, but I suspect a lot because there's no real shortage of them even now, forty years after the SMCTs were replaced with the K-mount. Or at least so it seems with the more popular, or more common lenses.