The previously rumored Irix 150mm f/2.8 MACRO 1:1 lens was just officially announced. Here are the MTF chart, distortion graph, technical specifications and press release: Compatible sensor size 35mm “Full Frame” and smaller Focal length 150 mm Maximum aperture F2.8 Field of view 160 (diagonal) Range of focus 0.345 m (0.92 ft) - ∞ Focus setup manual Focus ring rotation angle 270 degrees Magnification ratio 1:1 Minimum focusing distance 0.345m Aperture range f/2.8 – f/32 Aperture control via camera Number of diaphragm blades 11 rounded aperturę blades Lens construction 12 elements in 9 groups (4x HR, 3x ED) Filter size φ77 mm Weight 840g Corresponding Mounts Canon EF, Nikon F, Pentax K Dimensions 87 x 135 mm (without tripod collar and lens hood) Lens hood Detachable Additional features Focus Lock ring Detachable tripod collar Sealings Front element (1 O-ring) Focus Lock ring + Focusing ring (3 O-rings) Bayonet mount (1 O-ring) Press release: Macro telephoto lens: no compromises, no restrictions The Irix 150mm f/2.8 MACRO 1:1 IRIX, a European brand already known for its high-quality wide-angle lenses (Irix 11mm f/4.0, Irix 15mm f/2.4) and photographic filter systems is expanding its portfolio with a new lens – the Irix 150mm f/2.8 Macro 1:1, designed for full frame cameras with the Nikon F, Canon EF, and Pentax K mount. With its focal length of 150mm and 1:1 scale of reproduction, these are the basic features of the new product that allows comfort working with small objects. Thanks to the possibility of being...
Published By: Nikonrumors - Monday, 24 September, 2018