Irix 150mm f/2.8 is a modern and versatile macro telephoto lens designed for full-frame high-resolution DSLR cameras. Its fast aperture of f/2.8 facilitates shorter exposure times, while its moderately long focal length of 150mm provides an excellent compromise between the narrow viewing angle desired in macro, advertising and portrait photography, and the convenience of hand-held photography. The lens is equipped with an aperture mechanism consisting of 11 aperture blades with a rounded shape which provides a pleasant blur of background or points of lightand helps to maintain exellent sharpness even after stopping down the aperture. Lightened Aluminium internal frame › lightweight composite housing reinforced with Al-Mg alloy and anti-scratch finish › anti-slip coating on focusing ring › engraved markings covered with UV reactive paint › superior dust and moisture protection (5 sealings) › supplied with a convenient hard-case › and tripod collar The Irix 150mm f/2.8 Macro 1:1 is the first lens available in the new Dragonfly series, which combines the lightness and perfect ergonomics of the Firefly and the durable magne- sium housing used in the Blackstone. A practical deep lens hood that iso- lates the lens from sidelight sources and also protects the front element of the lens from minor damage › a rigid lens case for safe transport and storage a detachable tripod collar made to the Arca Swiss standard, allowing you to transfer the weight that is the cen- tre of mass to the front and securely place the camera on a tripod.