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Results for “Bokeh”

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Onion-ring Bokeh Optics, Lenses & Filters Concentric rings visible inside out-of-focus highlights, caused by tooling marks on a moulded aspherical element. Optical Vignetting Optics, Lenses & Filters stops (EV) Corner darkening caused by the lens barrel physically clipping the light cone reaching off-axis parts of the frame.