Hi i am wondering if this is normal, i just bought an eotech from a private party. I didnt notice at the time but when i got home i noticed a couple of what look like blemishes in the coating of the rear lens. I google searched it and found a couple listings for eotechs with what they called "typical blemishes" on the glass. They dont look like scratches or anything, it looks like its in the film. Any advice would be great.
Its kind of hard to photograph but its the stuff that looks like lint or something on lens.