![]() ![]() Once you’ve adjusted focus to where you want it, pressing this button on the lens barrel will keep the lens locked to that 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. Other important benefits include fast autofocusing and a short minimum focusing distance. Only the middle groups of the optical system move to achieve focus, so the overall length of the lens does not change. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Spherical aberration is a slight misalignment of the light rays projected on the image plane. Aspherical Lens ElementsĪspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Smoother, more natural defocusing can be obtained as a result. ![]() α 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. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. When changing your aperture to defocus the background, the light sources appear blurred. 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. 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. It compresses my subjects nicely and looks fantastic." -Sony Artisan Michael Rubenstein Key Technology in the FE 90mm f/2.8 G OSS Lens: Nano AR CoatingĮffectively suppress reflections that can cause flare and ghosting with Sony’s original Nano AR Coating technology. Though its intended as a macro lens I use it more often as a mid length portrait lens. It's super sharp and has a very interesting bokeh. “The Sony 90mm macro is wicked sharp.” –Sony Artisan Caroline Jensen The 90mm Macro renders wonderful detail just inches away from the subject and provides a creamy bokeh.” –Sony Artisan Marc Weisberg The lens is tack sharp wide open at f/2.8 and when stopped down to f/11 and beyond. I've used it for portraiture, landscape and for hand held macro photography. “The FE 90mm f/2.8 Macro G OSS is a triple threat lens. The iris in the 90mm was designed to be almost perfectly circular at wide apertures to help create the beautiful bokeh. Many wedding and portrait photographers use it for its combination of performance, Optical SteadyShot stabilization system and beautiful bokeh. The 90mm Macro is for much more than just close ups. It's also a true macro lens that can create a 1:1 image. Prized for its sharpness across the frame at all apertures, the lens is extremely well corrected for aberrations and the advanced Nano AR coating reduces internal reflections and contrast-robbing flare. And, the lens has built-in Optical SteadyShot image stabilization for compensating for camera shake at all focusing distances.The Sony FE 90mm f/2.8 Macro G OSS lens is one of the top performers of all time. On top of this, the focusing ring slides for immediate switching between manual and auto focusing. ![]() Users also have direct access to a focus hold button and focus range limiter for further optimizing the lens’ performance in certain situations. The lens also boasts a fast f/2.8 aperture for controlling depth of field and working in less-than-ideal light as well as a Nano AR coating that help eliminate ghosting and flare.Ĭritical to macro is accurate focusing, which is assisted by the speedy Direct Drive Super Sonic wave Motor present in the 90mm lens. As a G series lens, it perfectly balances sharpness and bokeh through the use of various specialized elements, this ensures highly detailed images, with smooth out-of-focus areas, and an absolute minimum of aberrations. Get up close and personal with the 1:1 magnification ratio of the full-frame compatible FE 90mm f/2.8 Macro G OSS Lens for Sony’s E-mount cameras. ![]()
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