First the sad story because this may be all we get here-a learning experience. I got caught in a downpour with my D7100 unprotected. I should have run into a store to get a plastic bag but my car wasn't much further and I was subconsciously relying on the "weatherproof" coating on the camera. Mistake. I did not turn the camera on & by the time I got home I could see moisture in the top window. So I opened up all the holes, took everything out including the lens and placed it in a sunny warm window for 2 days. It seemed to have cleared up so I put the battery in and took a few pictures. The camera seemed fine. But gradually over time the viewfinder has gotten very dim and the meter is wildly off. The autofocus still works though, even in continuous mode. It still takes good pictures. The camera works quite well in live view also. So it's not quite a paperweight. But I have some slim hope because the viewfinder is strictly optical not electronic. I thought I would consult the forum before giving up. I would pay $150 or so to repair it but not much more.
Thanks in advance for any wisdom.