360 rotating right angle viewfinder

Has anyone come across a decent 360 rotating right angle viewfinder. I've got a K10D with no live preview and getting down to focus on some of my shots is now proving to be a problem now an old back injury has flared up.

Thanks

The Seagull finders you find on eBay for around £25 are just fine (some are branded Seagull, some are plain).

I've had mine a couple of years now and have no complaints other than the plastic adapter that slips over the viewfinder eyepiece feels a little flimsy. I expected mine to break after a couple of mountings but actually it's proved to be a lot more resiliant than it looks.

The finder itself is quite a rugged piece of kit which works very well, has a nice clear and corrected view and a useful magnification facility. For the money you can't really go far wrong...

thanks for the helpful advice