Originally posted by Nesster The OM series was a game changer, beautifully engineered and thought out cameras. The OM2 in retrospect is probably their pinnacle, as far as sales and market impact - and current usability goes. Olympus came from nowhere to be the #2 selling SLR in Japan for instance, after Nikon. Every other camera maker had to react, just as they later had to react to Canon's elctronic light shows and Minolta's auto focus. The manufacturers who did not, went into peril...
In '85 I was ready to upgrade from my Olympus Pen FT half frame... and for sentimental reasons bought an OM2s rather than a Super Program or one of the Minoltas. And the OM2s is a fine camera, in many ways better built, engineered and designed than Pentax of the time. But it's let down by a couple of glaring problems which the Pentax Programs don't have: it has horrendous battery life, a dim view finder (to permit through the mirror metering)... and although excellent and small, the OM lenses I feel aren't as built to last as Pentax or Nikkor, to take two.
I now have a Program Plus that I use far more often than the OM2s...
The other bit about OM vs Pentax - see above Canon and Minolta challenges - Olympus never did manage to compete with these game changers. Pentax managed, though one may argue how successfully. As a result, OM has become a semi-orphaned camera, while we all benefit from the Pentax lens compatibilty to this day.
Small vs. large has always seemed to be in play with 35mm cameras - you have your Leicas as the prototypical small cam, and Nikon F as the large. Personally, I'm in the small camp, although some of the cameras probably did end up too small for their own good.
So, I probably shot more with either of my OM2s/p than I did with the totality of all the other cameras I've owned. It was a /grand/ camera.
It did exposure metering right: if you're in manual, you're smart enough to use "spot" metering, so that's what you'll get. Period. It was a system camera, meaning that you could exchange the focusing screen and use all the equipment (flashes, winders, ...) and all the wonderful OM lenses.
The weakness...none of the above. It was that it was one of the first "fully electronic" cameras, and so, the electronic circuitry was prone to failures. One of my OM2s/p's had the circuit board replaced 3 times while I had it. I suxx'ed bigtime, but the ergonomics of the camera was perfect, so I kinda tolerated it. OM3/4 were, nominatively, better cameras, but I still think that the 2s/p was the ultimate natural extension of my body for photography.
I'm nostalgic, but have moved on - mostly. I've sold all the OM gear, and am happily using Pentax. Still, when I see an OM1 or OM2s/p, my heart bleeds just a little....