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Sony FE 135mm GM is a Sony Alpha full-frame telephoto prime G Master lens. A new optical design that adheres to demanding G Master standards places XA extreme aspherical Super ED extra-low dispersion and ED glass elements in the front group to effectively suppress all common telephoto lens aberrations while a floating focus system works with these correction measures to ensure that the highest possible resolution is maintained from center to periphery of the image edge throughout the lens’s focus range. G Master Bokeh The extremely high surface precision of the XA extreme aspherical elements carefully control spherical aberration combining with an 11-blade circular aperture mechanism to produce spectacularly smooth and elegant G Master bokeh that maximizes the creative potential of the narrow depth of field available with this 135mm f/1.8 lens. XA Extreme Aspherical Elements The extremely precise XA extreme aspherical lens element with better than 0.01-micron surface precision reduces aberration and delivers the ultimate resolution throughout the entire focus and aperture ranges. Using newly developed bokeh simulation techniques spherical aberration and unsightly onion ring bokeh can be minimized during both design and manufacture of the large-diameter XA lens element resulting in exquisitely soft and smooth bokeh. Super ED and ED Glass Elements One Super ED extra-low dispersion glass element and one ED glass element are strategically positioned to compensate for axial chromatic aberration that is often a problem in large-aperture telephoto lenses achieving impressive sharpness. In addition to improving resolution this configuration minimizes color fringing that can occur in background and foreground bokeh. 11-Blade Circular Aperture The 11-blade circular aperture mechanism maximizes the beauty of this large-aperture prime lens contributing to impressive images in which the subject stands out against a smoothly defocused foreground and background producing the large perfectly round points of defocused light bokeh that is a desirable characteristic of telephoto lenses even when stopped down by one or two stops. Soft natural bokeh provides a beautiful backdrop for the main subject especially in portraits. Four XD Linear Motors for AF Speed Four innovative XD extreme dynamic linear focus motors drive two precisely synchronized focus groups in a floating focus mechanism offering outstanding speed precision and tracking that contribute directly to fast precise quiet AF operation with low vibration. This also prevents aberration variations that can occur as the camera-to-subject distance changes maintaining optimum resolution throughout the lenses focus range. The camera’s speed potential is put to full use to capture decisive moments in dynamic portraits sports and other action scenes with impressive speed precision and reliability. Nano Anti-Reflective Coating Sony’s original Nano Anti-Reflective Coating technology minimizes flare and ghosting for dynamic range that achieves lifelike detail and gradation with advanced camera sensors. This precisely defined regular nano-structure allows accurate light transmission contributing to high-quality images. The reflection suppression characteristic of the Nano Anti-Reflective Coating is superior to conventional anti-reflective coatings providing a notable improvement in clarity contrast and overall image quality. Close Focus An advanced floating focus mechanism prevents aberration variations that can occur as the focusing distance changes providing a minimum focus distance of just 2.3 ft inches and a maximum magnification of 0.25x for impressive close-up capability. High resolution and exquisite G Master bokeh are maintained even in close-up shots.
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- FOCUS: Focal length: 135mm / Minimum focus distance of 2.3 ft.
- APERTURE: Aperture range: f/1.8 to f/22 / 11 blade aperture design.
- TYPE: 35 mm full frame format Sony E-mount lens.
- ZOOM: 0.25x maximum magnification.