Agm pvs-7, defective on arrival. - AGM Global Vision PVS-7 3AW1 Night Vision Goggle System

Second pair I have tried. Both had blemishes in the tube. I spoke to customer service before I bought the 2nd pair and the gal I spoke to assured me that new NVG's do not have defects. The last pair I sent back would not focus. Planets were just blurry dots and stars could not be seen. The screen had a sparkly background. I have used this brand many times in night sky tours and they are typically easy to use. I know blems are common but and I have seen them before but I want to start with a clean field at this price.