Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The 16x50's are terrible for football

My daughter bought me the 16x50's based upon the comments that they were great for football. Perhaps the 10x50's are. However, I found the 16x50's totally unacceptable for watching a game. The depth of focus is incredibly small, meaning that items in front may be infocus but things a few yards back are out of focus. Trying to follow a play was also impossible.