Hey everyone! I got a cheap Weston Master V light meter from ebay which actually said "in perfect working condition" which seems to be a false statement. The needle is not responding to light at all and I'm not sure if it is because of a dead selenium cell or if I'm doing something wrong. My question is, is it possible to change the selenium cell myself? I saw that there is a company in London (Megatron) that actually sells the cells. Replacement by them would cost 42 pounds which just doesn't make too much sense since the Weston was supposed to become my small backup light meter. But I'm wondering if it's possible to just buy the cells and replace them myself. Unfortunately I couldn't find any manuals on that online (only a few for how to replace them in old cameras). Any ideas? Thanks!