- High-magnification zoom with image stabilization.
- Minimum focus distance0. 3 (Wide) –0.5 m (Tele) (0.99 [Wide]) –1.64 feet[Tele]); Maximum 0.35 x, Focal Length: 18-200 mm.
- 18 mm wide-angle to 200 mm telephoto assures coverage to capture any scene.
- Optical image stabilization expands handheld shooting options.
Product Description
-------------------
E- 18-200mm F3.5-6.3 OSS LE From sweeping landscapes
through portraits to sports and wildlife, this lens will cover it
all. In 35mm full-frame format terms the 11x zoom range of this
lens goes from 27mm wide to 300mm telephoto, with superb image
quality all the way thanks to an advanced optical design and
Optical Steady image stabilization. That’s heavyweight
performance in the lightest and most compact 18-200 mm zoom in
the E- lineup. The perfect travel lens. 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. 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. ED glass dramatically
reduces chromatic aberration at telephoto ranges, and provides
superior contrast across the entire image, even at large aperture
settings. Super ED glass provides enhanced compensation for
chromatic aberration. 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.
Advanced Aspherical (AA) elements are an evolved variant,
featuring an extremely high thickness ratio between the center
and periphery. AA elements are exceedingly difficult to produce,
relying on the most advanced molding technology to consistently
and precisely achieve the required shape and surface accuracy,
resulting in significantly improved image accuracy and quality.
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. 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. 2012 Sony Electronics, All rights
reserved. Sony, the Sony logo, Alpha, “α” and Super Steady
are trademarks of Sony. All other trademarks are trademarks of
their respective owners.
From the Manufacturer
---------------------
E 18-200mm F3.5-6.3 Zoom Lens
-----------------------------
From sweeping landscapes through portraits to sports and
wildlife, this lens will cover it all. In 35mm full-frame format
terms the 11x zoom range of this lens goes from 27mm wide to
300mm telephoto, with superb image quality all the way thanks to
an advanced optical design and Optical Steady image
stabilization. That’s heavyweight performance in the lightest and
most compact 18-200 mm zoom in the E- lineup. The perfect
travel lens.
Technology
----------
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.
ED (Extra-low Dispersion) glass
-------------------------------
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. ED glass dramatically reduces chromatic
aberration at telephoto ranges, and provides superior contrast
across the entire image, even at large aperture settings. Super
ED glass provides enhanced compensation for chromatic aberration.
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. Advanced Aspherical
(AA) elements are an evolved variant, featuring an extremely high
thickness ratio between the center and periphery. AA elements are
exceedingly difficult to produce, relying on the most advanced
molding technology to consistently and precisely achieve the
required shape and surface accuracy, resulting in significantly
improved image accuracy and quality.
Lens-based optical image stabilization
--------------------------------------
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.
Additional Features
-------------------
Internal focusing
-----------------
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.
2012 Sony Electronics, Inc. All rights reserved. Sony, the Sony
logo, Alpha, “α” and Super Steady are trademarks of Sony. All
other trademarks are trademarks of their respective owners.