I recently picked up an Olympus OMZ 50mm f1.8 pretty cheaply of ebay. The front element has a slight mould on the rear side although so far I've not seen this affect the image quality. Disassembling ...
I'm new here. I have a problem with my Olympus C-500 Zoom (D-595 Zoom in the US). Every time I change the batteries, all the settings get lost (including date and time). Probobly some internal battery ...