Everything is obsolete the minute it leaves the factory. On the other
hand nothing that still preforms it's function
is truly obsolete. Using the old glass on the new cameras doesn't make
sense? Only from a marketing point of view.
Tom Reese wrote:
JCO wrote:
I am waiting too, where are your estimates
showing their decisions were justified?
Advancing technology justified their decisions. The old lenses were
obsolete. The company assumed (correctly) that almost everyone would want
autofocus lenses with their new cameras. You don't put model T engines in a
Ford Mustang. Lens design technology with aspherical glass, autofocus,
internal focusing, non-rotating front elements etc had progressed to the
point where the company didn't think it made any sense to use the old glass
on the new cameras. They were right. It doesn't make any sense.
There may also have been solid engineering reasons for doing so. You don't
know what features are built into the modern lenses for compatibility with
future cameras. Retro capability may have prevented some other feature
(whether ever implemented or not) from being added. I don't know if that's
true and neither do you. Only the Pentax engineers know for sure.
Tom Reese
--
When you're worried or in doubt,
Run in circles, (scream and shout).
