This lens enables 1:1 (1X) photography at distances up to 13cm from the lens to the subject. The refined aluminum alloy body has a simple drip-proof construction and is built with a compact, lightweight design without an iris ring. This reduces ghosting and flare for enabling superior imaging performance for sharp images with high contrast at all shooting distances. A round iris diaphragm is used for rendering natural out-of-focus (bokeh) background effect.