Irix announces 150mm macro lens
Irix has announced that they will be producing a manual focus 150mm f/2.8 macro lens. It offers a 1:1 magnification ratio at 0.345 m (0.92 ft) and a maximum aperture of f/32. It will be available with Nikon F, Canon EF, and Pentax K mounts and is constructed with 12 elements in 9 groups, and an 11 bladed aperture diaphragm.
