Product Description
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The full-frame 90mm medium telephoto macro E- lens features
built in image stabilization for sharp, clear images at up to 1:1
magnification, even when shooting handheld. Advanced optics and
coatings with a 9-blade circular aperture deliver exceptionally
smooth bokeh that G Lenses are renowned for. Sharp in-focus
rendering is achieved with a floating focus mechanism that
suppresses aberration equally at all focusing distances, whether
the subject is far away or extremely close. Other advanced
technologies, such as the Nano AR Coating and Super ED (extra-low
dispersion) glass, elevate overall performance to an extremely
high standard.
From the Manufacturer
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FE 90mm F2.8 Macro G OSS Full-frame E- Macro Lens
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The full-frame 90mm medium telephoto macro E- lens features
built in image stabilization for sharp, clear images at up to 1:1
magnification, even when shooting handheld. Advanced optics and
coatings with a 9-blade circular aperture deliver exceptionally
smooth bokeh that G Lenses are renowned for. Sharp in-focus
rendering is achieved with a floating focus mechanism that
suppresses aberration equally at all focusing distances, whether
the subject is far away or extremely close. Other advanced
technologies, such as the Nano AR Coating and Super ED (extra-low
dispersion) glass, elevate overall performance to an extremely
high standard.
Additional Features
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Nano AR Coating
---------------
Effectively suppress reflections that can cause flare and
ghosting with Sony’s original Nano AR Coating technology. 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.
Circular Aperture
-----------------
When changing your aperture to defocus the background, the light
sources appear blurred. This ‘bokeh’ effect of the blurred
background can be enhanced with circular aperture blades used in
this lens. Conventional aperture blades have flat sides creating
unappealing polygonal shaped defocussed points of light. 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. Smoother, more natural defocusing
can be obtained as a result.
Aspherical lens elements
------------------------
Aspherical lens design dramatically reduces spherical aberration
while also reducing lens size and weight. Spherical aberration is
a slight misalignment of the light rays projected on the image
plane. This is caused by differences in refraction at different
points on conventional spherical lenses which degrade image
quality in large-aperture lenses. 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. Well-designed aspherical
elements can reduce the total number of elements required in the
lens, thus reducing overall size and weight.
Internal focusing
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Only the middle groups of the optical system move to achieve
focus, so the overall length of the lens does not change. Other
important 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.
Focus hold button
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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. The preview function can also be assigned to
this button through the camera’s custom settings.
Focus range limiter
-------------------
This function allows you to set a limit on the focusing range
which can save you time during AF operation as the lens will not
‘hunt’ through the entire focusing range. In macro lenses, this
limit can be on either the near or far range (as pictured). In
the SEL90M28G, the limit is set on far ranges only.
Sliding Focus Ring
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The focus ring slides back and forth to select manual or auto
focus which together with a focus hold button, inner focus, and a
focus range limiter provide optimum control for macro photography
making it easier to shoot insects and other subjects that cannot
be approached too closely. Minimal focus breathing and quiet
operation are also advantageous for shooting movies.
Lens-based optical image stabilization
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Gyro sensors built into the lens detect even the slightest
movement, and the stabilization lens is precisely shifted to
counteract any image blur that might occur. The use of precision,
quiet linear motors and technology inherited from high-end Sony
professional camcorders results in exceptionally quiet, effective
image stabilization that contributes to high-quality movies as
well as stills.
Direct Drive SSM (DDSSM) for quiet, precise focusing
----------------------------------------------------
Quiet, precise DDSSM (Direct Drive SSM) focus drive - employs
piezoelectric elements oscillating at ultrasonic frequencies to
drive the focus lens groups. In this case two floating focus
groups are driven by independent DDSSM systems for precision
positioning of the relatively heavy lenses required for macro
photography. The DDSSM drive system is remarkably quiet, making
it ideal for animal and insect photography, as well as for
movies. It also improves the precision of “focus wobble” employed
to achieve optimum focus when shooting movies.
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whole or in part without written permission is prohibited. Sony
is not responsible for typographical and photographic errors.
Features and specifications are subject to change without notice.
All rights reserved. Sony, the Sony logo, (alpha) logo, and
Steady are trademarks of Sony. G is a trademark of Sony
Corporation. All other trademarks are trademarks of their
respective owners.
- A perfect match for α7 series, 35mm full-frame E- cameras, 90mm Macro with a bright F2.8 maximum aperture, Nano AR coating effectively suppress reflections, Dust and moisture resistant design.
- Minimum Focus Distance : 0.92 ft (0.28 m), Maximum Magnification ratio : 1.0x, Focal Length : 90 mm. The angle of view is 27 degree (35 mm) and 17 degree (APS-C).
- Optical Steady image stabilization for handheld shooting, Instant manual/auto focus selection via a sliding focus ring, Instant manual/auto focus selection via a sliding focus ring.
- Corner to corner sharpness w/ Advanced Spherical elements, Super ED glass w/ multi‐coating reduces flare and ghosting, 9-blade circular aperture contributes to gorgeous bokeh.
- Direct Drive SSM (DDSSM) for quiet, precise focusing; Weight: 602 g (21.3 oz).