Sony Alpha E-Mount FE 90mm f/2.8 Macro G OSS Lens
High resolution plus gorgeous bokeh.
The Sony FE 90mm f/2.8 lens is the first E-mount medium telephoto macro lens with built-in Optical SteadyShot (OSS) image stabilization delivers outstanding G Lens quality: stunning resolution at up to 1:1 magnification plus gorgeous background bokeh when required, even when shooting handheld. A floating focus mechanism ensures that consistently superior optical performance is achieved at all focusing distances.
Renowned G Lens background bokeh
Each lens is individually tested and calibrated to minimize spherical aberration so that the smoothest, most visually pleasing bokeh is achieved.
Image-wide clarity from macro to infinity
A compact floating focus mechanism maintains consistently superior optical performance throughout the image at any focusing distance.
Precise, quiet focus for stills and movies
Dual DDSSM (Direct Drive Super Sonic wave Motor) drive systems position the heavy focus element groups required for full frame macro photography quickly, precisely, and quietly.
Sharp and clear without a tripod
The first a-series macro lens with built-in Optical SteadyShot (OSS) image stabilization makes it possible to shoot sharp macro images handheld.
Only the middle groups of the optical system are moved to achieve focusing, which leaves the total length of the lens intact. Benefits include fast autofocusing and a short minimum focusing distance. Also, the filter thread at the front of the lens does not rotate, which is convenient if you're using a polarizing filter.
Nano AR Coating
This precisely defined regular nano-structure allows accurate light transmission, contributing to high-quality images, even more so than lenses with coatings that use an irregular nano-structure. The reflection suppression characteristic of the Nano AR Coating is superior to conventional anti-reflective coatings, providing a notable improvement in clarity, contrast, and overall image quality.
Aspherical lens elements
Spherical aberration is a slight misalignment of light rays projected on the image plane by a simple spherical lens, caused by differences in refraction at different points on the lens. That misalignment can degrade image quality in large-aperture lenses. The solution is to use one or more specially shaped "aspherical" elements near the diaphragm to restore alignment at the image plane, maintaining high sharpness and contrast even at maximum aperture. Aspherical elements can also be used at other points in the optical path to reduce distortion. Well designed aspherical elements can reduce the total number of elements required, thus reducing overall lens size and weight.
ED (Extra-low Dispersion) glass element
As focal lengths get longer, lenses built with conventional optical glass have difficulties with chromatic aberration, and as a result images suffer from lower contrast, lower color quality, and lower resolution. To counter such problems, ED glass was developed and is included in select lenses. It dramatically improves chromatic aberration at telephoto ranges, and provides superior contrast across the entire image, even at large aperture settings.
||ED (EXTRA-LOW DISPERSION) GLASS
In general, if an aperture uses 7 or 9 aperture blades, then the shape of the aperture becomes a 7-sided or 9-sided polygon as the aperture is made smaller. However, this has a certain undesirable effect in that the defocusing of point light sources appears polygonal and not circular. Alpha lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.