So it is a decision between the lighter, only-manuell, viewfinder Rollei 35 and the more versatile, heavier, manuall and AE Rangefinder Olympus RC.
Its funny that i accidently bought now a Olympus RC on ebay (i made a very low price suggestion, which was accepted!)
But again to the more experienced folks, whats your favorite between the Rollei and the RC? I heard very different things about the Rollei, some praise their Lens, some find them overrated.
The Olympus 35RC can be used in manual mode as well - you turn the ring around the lens (close to the body) to set the aperture. In manual mode, the meter doesn't work, only in auto, so you have to switch to auto mode to get a reading, and then change to your preferred aperture (either the metered aperture, or something else if you wish). Fine for occasional meter readings, but a bit of a pain if you like to meter every shot. The aperture ring is a bit fiddly to use, being so close to the body, but the camera handles well apart from that - shutter speed is easy to adjust, film advance is by a lever, and focussing is fine.
The Olympus XA is very light and compact, but is fiddly and plasticy. The feather touch electronic shutter release is a pain - too easy to get an unwanted exposure. Aperture priority only.
Rollei 35 is between these two in compactness, and is all mechanical, but no rangefinder, and quirky handling (but not bad - easy enough to get used to). The 35B/B35 is much lighter than the 35/35T/35S, but reputedly not as robust inside (more plastic cogs).
A Barnack Leica with a collapsible lens is great for taking pictures, but is bigger than the others and costs more.
I've used all of these as a jacket pocket camera. I found the Leica IIIf & Elmar a bit big (even in a fairly close-fitting zip pouch). The Olympus 35RC is smaller, but the non-collapsing lens sticks out a bit too much (and is a bit so-so optically). The XA is light and super compact, but usability is too compromised for me. I settled on a Rollei 35S. All mechanical, great lens, and scale focus isn't a big deal for the type of shots I use it for (ie, no low light stuff at short distances).
That said, if you've bought an Olympus 35RC, I'd suggest you get on with using it. Certainly not a bad choice - aside from the somewhat fiddly aperture/metering, it has very good handling for such a small camera.