I think the KM and KX cameras were pretty much seen as interim cameras,
the KM is pretty much a next generation Spotmatic F with a different,
actually simpler, as far as open aperture metering is concerned, to
implement lens mount. I'm not sure that the KX is all that much
different either, the meter is drop in module, (the Spotmatic F, KM, and
K1000 can pretty much exchange flex boards with minor modifications and
they all work.
It was one way to keep your SPF fully functioning if the meter somehow
died, get a K1000 donor board.
I'll bet the shutters and most of the mechanical parts are also pretty
much the same too for the original K1000 vs the SPF as well, except for
the lens related parts of course.
Thinking about it I can see how the original push mechanism to stop down
the lens could be almost directly used to push an armature that would
move a lever up to allow the lens to stop down.
On 4/5/2017 5:36 PM, Brian Walters wrote:
On Thu, Apr 6, 2017, at 12:49 AM, Darren Addy wrote:
On Tue, Apr 4, 2017 at 9:11 PM, John Francis <jo...@panix.com> wrote:
I still have the MX I bought only a year later.
I've often wondered why Pentax introduced two entirely new
body ranges so close together - they must have had the M-series
bodies well on the way to production by the time the KM/KX/K2
were released.
The answer is Market Forces. If you will recall, everyone made big
body SLRs until Olympus shook up the world with the introduction of
the OM-1 system.
http://www.mir.com.my/rb/photography/hardwares/classics/olympusom1n2/om1/
The Pentax M series was clearly a response to that.
That's always been my understanding, too. But as John pointed out, the
M series appeared only about a year after the K series. That's a very
short time frame for development and production of a new model. If the
M series was a response to the Olympus OM series, Pentax must have had
prior knowledge that the OMs were coming. A spy at Olympus, perhaps?
:-)
Cheers
Brian
++++++++++++++++++++++++++++++++++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/
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