The Olympus M. Zuiko Digital ED 45mm F1. 2 PRO is a new, professional-grade portrait lens for the Micro Four Thirds system. The optical construction comprises 14 elements in 10 groups and an iris diaphragm with 9 rounded aperture blades.
The back focus and relay lens system allowed a reduction in the number of lens elements required, resulting in a very compact, light-weight lens. Olympus has used optimally placed lens elements to effectively compensate for aberrations such as out-of-focus colour bleeding – a common problem on large-aperture lenses – as well as peripheral colour bleeding. The lens also uses the same Z Coating Nano technology found on the M. Zuiko Digital ED 25mm F1. 2 PRO for sharp, clear image quality that significantly reduces ghosts and flares that tend to occur in backlit shots
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