I bought my first rangefinder at a garage sale Saturday for $15.00. It's a Yashica Electro 35 GSN and it's in near mint condition. It was well taken care of. But the trouble is: I know nothing about rangefinders and more specifically, nothing about this model. I've owned nothing but 35mm SLR's and one YashicaMat 124 TLR. I wasn't looking for a rangefinder, but for it's condition, I couldn't pass this one up for the price. I was wondering if anyone could tell me a little about what I bought. Any input would be appreciated.