Dwight
I don't think the Pentax LX is more out of production than the
OM-3Ti; The LX is handmade and they will build more as long as
there is demand. Most likely the LX would stay in production long
after all current AF-cameras are discontinued.
If you think that you must have spot-metering you should choose
Olympus. The OM-4Ti is an electronic camera that won't
work without batteries.
However, if spot metering isn't absolutely necessary, the LX is
the best choice; it has interchangable viewfinders, it is better
built than any Olympus (according to some Olympus cameras are
quite unreliable; I have a OM-4Ti body at work, exclusively used for
microscope photography - never been out of the house - to or three
films goes through it a year. Still it has been at service three
times for stucked shutter. However, it might just be a bad sample.
Ask some Olympus owners). The LX is one of the best built cameras
ever, it is also sealed against dust and moisture. It has aperture
priority auto and a electromechanical shutter that works at all
speeds from 1/75-1/2000 + B without batteries. The OM-4 won't
work without batteries and the OM-3 is purely mechanical and consequently
don't share the low light metering capabilities of the LX and OM-4Ti.
Furthermore, Pentax have a bigger range of lenses, especially in
the exotic department, and the line is still growing. The LX is also
compatible with the AF-system; the main reason why I think the
LX will be available for a long time. There certainly is a market for
no nonsense cameras that work without batteries and is compatible
with current AF systems.
Paal
Paal