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The STF 135mm f/2.8[T4.5]is innovative not only because it offers superb picture sharpness with high-quality descriptive performance, but it can also produce perfectly defocused image areas. Imperfections in defocusing effects, such as a defocused image dissolving into cluttered unsharpness, or a defocused image of a stem looking like overlapped images, have always been a source of headaches for photographers. The STF 135mm f/2.8[T4.5] eliminates the factors impairing the quality of defocused areas, and realizes a smooth transition from focused to defocused areas with unsurpassed defocusing effects both in foreground and background. The lens construction includes an apodization filter to implement a natural shift from focused to defocused areas. As a result, the original outline of the subject remains clear, the image is provided with depth, and the subject is visually outstanding. |