Instruct: Classify the given review into positive or negative sentiment.
Query: Blurry pictures. These lenses are a joke.

I ordered this lens as part of a 3 part set (2 different lenses and the lens adapter). They are easy to screw on. After that, the experience was poor. Everyone one of the photos, no matter what I tried, was blurry and of poor quality. I phoned and emailed their tech support with specific questions and received responses (phone and mail) that were not helpful. They emailed me support which basically said screw them on and take the picture. It was really a joke. I finally returned them for a refund due to my dissatisfaction. If I'm doing something wrong, I wish I knew as it would be a nice feature for the camera.