This manual focus lens from PENTAX is a great addition for any SLR camera. With a focal length of 20mm and a maximum aperture of f/4, this lens is perfect for capturing wide angle shots. The lens is compatible with a 49mm filter size and comes with caps and a case for protection. The lens is part of the PENTAX SMC series and has not been modified or customized in any way. It is a non-domestic product and is not sold as a custom bundle. The focus type is manual and the lens has a fixed/prime focal length type. Compatible with Pentax mount cameras, this lens is a must-have for any photography enthusiast.