The Sony 135mm GM f1.8 lens is part of the premium G Master Telephoto prime lens Series.
Featuring XD Linear Motor which offers excellent response and low vibration for fast, precise, quiet AF.
Its XA elements and Super ED glass provide high resolution throughout the image area and Sony Nano AR Coating eliminates flare and ghosting. The Sony 135mm GM also features a focus range limiter switch and many other features to support professional shooting needs.
An F1.8 135mm prime with superb resolution, bokeh, and AF
Unsparing application of Sony’s most advanced optical technologies has produced a large-aperture prime telephoto lens that delivers outstanding corner-to-corner resolution even at F1.8, plus exquisite bokeh that is a hallmark of the G Master series.
XA and Super ED elements deliver high resolution
XA (extreme aspherical), Super ED (extra-low dispersion) glass, and ED glass elements precisely deployed in an advanced optical design effectively correct aberration, while a floating focus system works with these aberration correction measures to ensure that the highest possible resolution is maintained right out to the image edges throughout the lens's focus range.
Narrow depth of field with breathtaking G Master bokeh
The extremely high surface precision of XA elements, careful control of spherical aberration at both the design and the manufacturing stages, and an 11-blade circular aperture all come together to produce spectacularly smooth, elegant G Master bokeh that maximises the creative potential of the narrow depth of field available with this 135mm F1.8 lens.
Dual front and rear XD linear motors achieve fast, precise, quiet AF
Sony’s innovative XD (extreme dynamic) linear motors also play an important role, making it possible to maintain focus on moving portrait subjects, performers on stage, or similarly dynamic subjects with impressive speed, precision, and reliability, while also providing AF control that is quiet and virtually free of vibration.
Floating focus mechanism for improved close-up capability
Although it is a 135-millimeter telephoto lens, a floating focus system that effectively controls aberration at all focusing distances has made it possible to achieve a minimum focus distance of just 0.7 meters (2.3 ft) and a maximum magnification of 0.25x for close-up photography. Small accessories and other subjects can be captured with remarkable resolution and soft, beautiful background bokeh.
Superior imaging plus mobility, operability, and reliability
The important features include customisable focus hold buttons, a focus range limiter, an aperture ring with switchable click stops, a dust/moisture resistant design1, and a fluorine coated front element. Overall, this is a lens that meets professional requirements for control and reliability for both stills and movies.
Lens Configuration
G Master series lenses take imaging and expression to previously unattainable levels with a stunning blend of extremely high resolution and softly dissolving background bokeh.
[1] Extreme aspherical lens (XA lens)
[2] Super ED glass
[3] ED (extra-low dispersion) glass
MTF Chart
MTF (Modulation Transfer Function) describes how well a lens can reproduce fine details, measured as the degree of contrast achieved between finely spaced lines.
[1] Contrast (%)
[2] Distance from optical center of lens (mm)
[3] Max. aperture
[4] F8 aperture
[5] Spatial frequency
[6] 10 lines pairs / mm
[7] 30 line pairs / mm
[8] Radial values
[9] Tangential values
Lens Controls
1. Focusing ring / 2. Aperture ring / 3. Focus mode switch / 4. Focus hold button / 5. Aperture index / 6. Focus-range limiter / 7. Aperture click switch
SPECIFICATIONS & FEATURES
| Premium G Master Series Telephoto prime lens |
| XD Linear Motor offering excellent response and low vibration for fast, precise, quiet AF |
| XA elements and Super ED glass for high resolution throughout the image area |
| Sony Nano AR Coating to eliminate flare and ghosting |
| Focus range limiter switch and other features support professional shooting needs |
| MINIMUM FOCUS DISTANCE | 0.7 m (2.3 ft) |
| MAXIMUM MAGNIFICATION RATIO (X) | 0.25 |
| FILTER DIAMETER (MM) | 82 |
| WEIGHT | 950 g (33.6 oz.) |
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