This is a 35mm 10MP Telephoto Lens which is suitable to use with the Raspberry Pi High Quality Camera. It has a high level of zoom and can be used to target specific subjects located far away. It has an adjustable ring to change the aperture from F1.7-F1.6 and has an adjustable focus ring as well. The lens can be easily screwed into the Raspberry Pi High Quality Camera. Also, it comes with front and back covers for protection when it's not in use.