Smooth Trans Focus
The Smooth Trans Focus (STF) technology in photographic lenses uses an apodization filter to realize notably smooth bokeh with rounded out-of-focus highlights in both the foreground and background. This is accomplished by utilizing a concave neutral-gray tinted lens element next to the aperture blades as apodization filter, a technology originally invented (and patented) by Minolta in the 1980s, and first implemented in a commercially available lens in 1999. In contrast to soft focus lenses, STF lenses render a perfectly sharp image in the focus plane.
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ApodizationAutobracketingDiaphragm (optics)F-numberFujinon XF 56mm F1.2 RMinolta A-mount systemMinolta STFMinolta Smooth Trans FocusSTFSTF (apodisation)STF (apodization)STF effectSTF lensSTF technologySmooth Trans Focus effectSmooth Trans Focus technologySmooth trans focusSony FE 100mm F2.8 STF GM OSSSony STFSony Smooth Trans FocusVenus OpticsVenus Optics Laowa 105mm f/2 Smooth Trans Focus
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Smooth Trans Focus
The Smooth Trans Focus (STF) technology in photographic lenses uses an apodization filter to realize notably smooth bokeh with rounded out-of-focus highlights in both the foreground and background. This is accomplished by utilizing a concave neutral-gray tinted lens element next to the aperture blades as apodization filter, a technology originally invented (and patented) by Minolta in the 1980s, and first implemented in a commercially available lens in 1999. In contrast to soft focus lenses, STF lenses render a perfectly sharp image in the focus plane.
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The Smooth Trans Focus (STF) t ...... EL-100F28GM) (introduced 2017)
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The Smooth Trans Focus (STF) t ...... harp image in the focus plane.
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Smooth Trans Focus
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