Thank you for viewing. I will explain based on the instruction manual from SONY. This is a high-performance conversion lens. It is part of the HG series, and is smaller and lighter than conventional lenses. It also supports cameras with a 37mm diameter, such as the DCR-TRV30. This lens is a wide-angle lens. Please take a good look at the photos and thank you. #lens #SONY #wideanglelens