- Silent ultrasonic Piezo Drive motor.
- Vibration Compensation.
- Wide 18-270mm focal range.
- Ideal travel lens. Angle of View (diagonal): 75゜33' - 5゜55'.
- 24% more compact and 100g lighter than its predecessor the 18-270mm VC (Model B003).
Product Description
-------------------
The oustanding Tamron 18-270mm VC ultra zoom for APS-C format
DSLRs has reached an astonishing new level of compactness,
performance, and speed with the addition of PZD (Piezo Drive), an
innovative ultrasonic autofocus motor based on an advanced
piezoelectric design. The result is a lens that's light, and
noticeably short and slim (filter diameter: 62mm), and provides
fast, quiet auto-focusing. The following are the signature
features that have made this amazingly versatile lens an ideal
all-in-one solution for travelling photographers
Piezo Silent Drive Mechanism
All New Piezo Silent Drive Mechanism (PZD)
------------------------------------------
The new PZD (Piezo Drive) piezoelectric drive marks another
Tamron first in its autofocus SLR lenses, an internal standing
wave ultrasonic motor system.
Innovations to reduce parts and simplify operation also
contributed to the lens’s reduced size and weight. Light and
small, the piezoelectric drive uses a standing wave, instead of a
travelling wave, to turn and extend the piezoelectric element.
Thus the entire element moves in a standing wave pattern, moving
the metal tip (the contact surface) in an elliptic motion. The
friction of this movement moves the rotor for a smooth, precise
autofocus.
Ultrasonic motors are divided into two categories depending on
the principle that generates the energy to move the drive:
traveling wave motors and standing wave motors. Traveling wave
motors include the ring type ultrasonic motor used in the
recently launched 70-300mm F/4-5.6 VC USD as well as other
lenses, but this lens with its newer technology, the PZD (Piezo
Drive), functions on the standing wave principle. A standing wave
ultrasonic motor utilizes high-frequency voltage to extend and
turn the piezoelectric (piezoceramic) element, thus moving the
entire element in a standing wave movement. The metal tip is the
contact point of the element to the rotor, and moves in an
elliptic motion from the swiveling motion of the moving element,
and the friction from this motion turns the rotor. Standing wave
ultrasonic motors have the distinct advantage of being smaller
than their traveling wave counterparts, and therefore allow a
more compact SLR lens size.
15x Zoom
Powerful 15x Zoom
-----------------
This lens covers an extremely broad range of focal lengths, from
an extra-wide 18mm length to a telephoto 270mm length (the 35mm
equivalent of 28mm to 419mm). The resulting 15x zoom ratio is the
world's largest, representing a wide cross section of Tamron
high-power zoom design technologies. Additionally, the vibration
compensation works throughout the entire zoom range, giving you
the freedom to create a wide variety of images. The lens lets
users capture once in a lifetime panoramic landscape images or
close-up pictures of children smiling, all without getting too
close to the subject or changing lenses. Other details include a
macro magnification range of 1:3.5, a minimum focusing distance
of 19.3 inches, and a 72mm filter diameter.
Di II
-----
Tamron Di-II lenses are engineered expressly for digital SLR
cameras with image sensors commonly referred to as APS-C,
measuring approximately 24mm x 16mm. Rendering an ideal image
circle for APS-C sensors, Di-II lenses are also include
properties to optimize digital imaging performance. These lenses
are not designed for conventional cameras or digital cameras with
image sensors larger than 24mm x 16mm.
Low Dispersion Glass
Low Dispersion Glass (LD)
-------------------------
Low dispersion (LD) glass elements in a lens help reduce
chromatic aberration, i.e. the tendency of light of different
colours to come to different points of focus at the image plane.
Chromatic aberration reduces the sharpness of an image, but glass
with an extremely low dispersion index has less of a tendency to
separate (defract) a ray of light into a rainbow of colours. This
characteristic allows the lens designer to effectively compensate
for chromatic aberration at the center of the field (on axis), a
particular problem at long focal lengths (the telephoto end of
the zoom range), and for lateral chromatic aberration (towards
the edges of the field) that often occurs at short focal lengths
(the wide-angle end of the zoom range.)
Internal Focusing System (IF)
-----------------------------
Internal focusing provides numerous practical benefits to
photographers, including a non-rotating front filter ring that
facilitates the positioning of polarizing and graduated filters,
and more predictable handling as the lens length does not change
during focusing. Crucially, Tamron’s Internal Focusing (IF)
system provides a much closer minimum focusing distance (MFD)
throughout its entire focusing range. IF also improves optical
performance by minimising illumination loss at the corners of the
image field, and helps to suppress other aberrations that become
more troublesome at different focusing positions.
Zoom Lock (ZL)
--------------
Tamron's Zoom Lock (ZL) function is a simple convenience feature
that prevents undesired extension of the lens barrel when
carrying the camera/lens on a neck strap.
Vibration Compensation
Vibration Compensation (VC)
---------------------------
Tamron’s VC (Vibration Compensation) just got even better.
It still offers great handheld and telephoto s. It still
delivers the excellent VC (Vibration Compensation) stable
viewfinder image, and excellent traceability. It’s still based on
a moving three-coil mechanism that activates the lens group
electromagnetically through three steel balls. But technology
must evolve. Previously, the heavy magnet was positioned near the
lens element and worked very well in this placement. In the new
VC (Vibration Compensation) mechanism, we’ve reversed the
positioning of the magnet and connected the lens to the coils.
This innovative new position thus achieves less load on the drive
and combined with lighter coils, contributes to a lighter, more
efficient lens. Shake can ruin your photos, particularly when
taking telephoto s or shooting in low light conditions.
Simply flip the VC switch on and you'll notice the difference
immediately.
VC delivers blur free - handheld images for incredible results
VC mechanism employs a three-coil system Lens element compensates
for vibration using 3-steel balls (making movement quiet &
smooth) Exceptional images at slower shutter speeds – reduces the
need for a tripod Bring out contrast to motion & stillness
Eliminate the need to shoot with a Flash
Anomalous Dispersion (AD)
-------------------------
Anomalous dispersion glass is a special type of optical glass
that is used to achieve more precise control of chromatic
aberrations, thereby enhancing overall imaging performance. Glass
of this type provides an abnormally large partial dispersion
ratio (a of diffraction) for light of specific wavelength
ranges (colours) within the visible spectrum. By combining AD
glass having these special characteristics with elements made of
normal glass having different dispersion characteristics, it is
possible to control the dispersion factors of a specific
wavelength. This enhanced level of control results in much lower
levels of on-axis (central) chromatic aberration for telephoto
lenses (or zooms used at tele-photo settings) and a significant
reduction of lateral (peripheral) chromatic aberration for
wide-angle lenses (or zooms used at wide-angle settings.)
Zoomed In
Aspherical Lens Elements (ASL)
------------------------------
Tamron uses several hybrid Aspherical lens elements in many
lenses bearing the Aspherical designation. These innovative
optics allow us to achieve exceptional image quality, and at the
same time produce lenses that offer remarkable zoom ranges in
extraordinarily compact packages. By perfecting these
cutting-edge advances for series production, Tamron virtually
eliminated spherical aberration and image distortion from the
high-power-zoom series. Through the effective application of
Hybrid Aspherical Technology, one lens element can take the place
of multiple elements without compromising performance. This is
what allows us to produce remarkably compact long-range lenses
that deliver a uniformly high level of image quality at all focal
lengths and apertures.
Box Contents
------------
* Tamron
* 18-270mm VC PZD Lens
* Lens hood
* Dust cap
* Lens cap
Legal Discler
----------------
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Manufacturer's Description
--------------------------
The oustanding Tamron 18-270mm VC ultra zoom for APS-C format
DSLRs has reached an astonishing new level of compactness,
performance, and speed with the addition of PZD (Piezo Drive), an
innovative ultrasonic autofocus motor based on an advanced
piezoelectric design. The result is a lens that's light, and
noticeably short and slim (filter diameter: 62mm), and provides
fast, quiet auto-focusing. The following are the signature
features that have made this amazingly versatile lens an ideal
all-in-one solution for travelling photographers
Piezo Silent Drive Mechanism
All New Piezo Silent Drive Mechanism (PZD)
------------------------------------------
The new PZD (Piezo Drive) piezoelectric drive marks another
Tamron first in its autofocus SLR lenses, an internal standing
wave ultrasonic motor system.
Innovations to reduce parts and simplify operation also
contributed to the lens’s reduced size and weight. Light and
small, the piezoelectric drive uses a standing wave, instead of a
travelling wave, to turn and extend the piezoelectric element.
Thus the entire element moves in a standing wave pattern, moving
the metal tip (the contact surface) in an elliptic motion. The
friction of this movement moves the rotor for a smooth, precise
autofocus.
Ultrasonic motors are divided into two categories depending on
the principle that generates the energy to move the drive:
traveling wave motors and standing wave motors. Traveling wave
motors include the ring type ultrasonic motor used in the
recently launched 70-300mm F/4-5.6 VC USD as well as other
lenses, but this lens with its newer technology, the PZD (Piezo
Drive), functions on the standing wave principle. A standing wave
ultrasonic motor utilizes high-frequency voltage to extend and
turn the piezoelectric (piezoceramic) element, thus moving the
entire element in a standing wave movement. The metal tip is the
contact point of the element to the rotor, and moves in an
elliptic motion from the swiveling motion of the moving element,
and the friction from this motion turns the rotor. Standing wave
ultrasonic motors have the distinct advantage of being smaller
than their traveling wave counterparts, and therefore allow a
more compact SLR lens size.
15x Zoom
Powerful 15x Zoom
-----------------
This lens covers an extremely broad range of focal lengths, from
an extra-wide 18mm length to a telephoto 270mm length (the 35mm
equivalent of 28mm to 419mm). The resulting 15x zoom ratio is the
world's largest, representing a wide cross section of Tamron
high-power zoom design technologies. Additionally, the vibration
compensation works throughout the entire zoom range, giving you
the freedom to create a wide variety of images. The lens lets
users capture once in a lifetime panoramic landscape images or
close-up pictures of children smiling, all without getting too
close to the subject or changing lenses. Other details include a
macro magnification range of 1:3.5, a minimum focusing distance
of 19.3 inches, and a 72mm filter diameter.
Di II
-----
Tamron Di-II lenses are engineered expressly for digital SLR
cameras with image sensors commonly referred to as APS-C,
measuring approximately 24mm x 16mm. Rendering an ideal image
circle for APS-C sensors, Di-II lenses are also include
properties to optimize digital imaging performance. These lenses
are not designed for conventional cameras or digital cameras with
image sensors larger than 24mm x 16mm.
Low Dispersion Glass
Low Dispersion Glass (LD)
-------------------------
Low dispersion (LD) glass elements in a lens help reduce
chromatic aberration, i.e. the tendency of light of different
colours to come to different points of focus at the image plane.
Chromatic aberration reduces the sharpness of an image, but glass
with an extremely low dispersion index has less of a tendency to
separate (defract) a ray of light into a rainbow of colours. This
characteristic allows the lens designer to effectively compensate
for chromatic aberration at the center of the field (on axis), a
particular problem at long focal lengths (the telephoto end of
the zoom range), and for lateral chromatic aberration (towards
the edges of the field) that often occurs at short focal lengths
(the wide-angle end of the zoom range.)
Internal Focusing System (IF)
-----------------------------
Internal focusing provides numerous practical benefits to
photographers, including a non-rotating front filter ring that
facilitates the positioning of polarizing and graduated filters,
and more predictable handling as the lens length does not change
during focusing. Crucially, Tamron’s Internal Focusing (IF)
system provides a much closer minimum focusing distance (MFD)
throughout its entire focusing range. IF also improves optical
performance by minimising illumination loss at the corners of the
image field, and helps to suppress other aberrations that become
more troublesome at different focusing positions.
Zoom Lock (ZL)
--------------
Tamron's Zoom Lock (ZL) function is a simple convenience feature
that prevents undesired extension of the lens barrel when
carrying the camera/lens on a neck strap.
Vibration Compensation
Vibration Compensation (VC)
---------------------------
Tamron’s VC (Vibration Compensation) just got even better.
It still offers great handheld and telephoto s. It still
delivers the excellent VC (Vibration Compensation) stable
viewfinder image, and excellent traceability. It’s still based on
a moving three-coil mechanism that activates the lens group
electromagnetically through three steel balls. But technology
must evolve. Previously, the heavy magnet was positioned near the
lens element and worked very well in this placement. In the new
VC (Vibration Compensation) mechanism, we’ve reversed the
positioning of the magnet and connected the lens to the coils.
This innovative new position thus achieves less load on the drive
and combined with lighter coils, contributes to a lighter, more
efficient lens. Shake can ruin your photos, particularly when
taking telephoto s or shooting in low light conditions.
Simply flip the VC switch on and you'll notice the difference
immediately.
VC delivers blur free - handheld images for incredible results
VC mechanism employs a three-coil system Lens element compensates
for vibration using 3-steel balls (making movement quiet &
smooth) Exceptional images at slower shutter speeds – reduces the
need for a tripod Bring out contrast to motion & stillness
Eliminate the need to shoot with a Flash
Anomalous Dispersion (AD)
-------------------------
Anomalous dispersion glass is a special type of optical glass
that is used to achieve more precise control of chromatic
aberrations, thereby enhancing overall imaging performance. Glass
of this type provides an abnormally large partial dispersion
ratio (a of diffraction) for light of specific wavelength
ranges (colours) within the visible spectrum. By combining AD
glass having these special characteristics with elements made of
normal glass having different dispersion characteristics, it is
possible to control the dispersion factors of a specific
wavelength. This enhanced level of control results in much lower
levels of on-axis (central) chromatic aberration for telephoto
lenses (or zooms used at tele-photo settings) and a significant
reduction of lateral (peripheral) chromatic aberration for
wide-angle lenses (or zooms used at wide-angle settings.)
Zoomed In
Aspherical Lens Elements (ASL)
------------------------------
Tamron uses several hybrid Aspherical lens elements in many
lenses bearing the Aspherical designation. These innovative
optics allow us to achieve exceptional image quality, and at the
same time produce lenses that offer remarkable zoom ranges in
extraordinarily compact packages. By perfecting these
cutting-edge advances for series production, Tamron virtually
eliminated spherical aberration and image distortion from the
high-power-zoom series. Through the effective application of
Hybrid Aspherical Technology, one lens element can take the place
of multiple elements without compromising performance. This is
what allows us to produce remarkably compact long-range lenses
that deliver a uniformly high level of image quality at all focal
lengths and apertures.
Box Contents
------------
* Tamron
* 18-270mm VC PZD Lens
* Lens hood
* Dust cap
* Lens cap
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