- 18-270mm focal length.
- 27-405mm equivalent focal length on APS-C cameras, 28.8-432mm equivalent focal length on Canon APS-C cameras.
- Micromotor-type AF motor without full-time manual focusing.
- 62mm filters F3.5-6.3 maximum aperture, minimum focus distance - 19.3 Inches, F22-40 minimum Refer user manual below.
- Available in Canon EF-S, Nikon F (DX), Sony Alpha (without image stabilization) s.
- Extremely fast Piezo drive focusing motor.
- Vibration Compensation for ultra sharp images.
- Compact design.
- 15x zoom range for versatility.
- Designed for APS-C sized sensors, Like two lenses in one.
From the Manufacturer
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The accled 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 considerably
lighter, and noticeably shorter and slimmer (filter diameter:
62mm) than any previous lens in its class, and provides faster,
quieter auto-focusing.
Signature features that have made this amazingly versatile lens
the world standard in its class have been retained. They include
a 28-419mm equivalent (15X) zoom range, an improved, lightweight,
compact Vibration Compensation (VC) system, macro focusing to
0.49m (19.3 inches) throughout, and, of course, superlative
imaging performance.
Piezo Drive (PZD) Ultrasonic Autofocus Motor 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 employs a newer
technology, the PZD (Piezo Drive), which 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.
Di II
Lenses are designed for exclusive use on digital cameras with
smaller-size imagers and inherit all of the benefits of our Di
products. These lenses are not designed for conventional cameras
and digital cameras with image sensors larger than 24mm x 16mm.
15x Zoom Ratio
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. Plus, 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. The lens, which
measures 3.1 inches in diameter and 3.9 inches long, carries a
six-year warranty.
Vibration Compensation (VC)
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
Low Dispersion (LD) Glass for Greater Lens Sharpness
Low dispersion (LD) glass elements in a lens help reduce
chromatic aberration; the tendency of light of different colors
to come to different points of focus at the image plane.
Chromatic aberration reduces the sharpness of an image, but glass
with an extremely lowdispersion index, has less of a tendency to
separate (defract) a ray of light into a rainbow of colors. 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 (IF) System
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 because the lens length does not
change during focusing. Even more important, Tamron’s Internal
Focusing (IF) system provides a much closer minimum focusing
distance (MFD) throughout its entire focusing range. In addition,
IF improves optical performance by minimizing 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)
Another original Tamron mechanical engineering concept is the
Zoom Lock (ZL), a simple convenience feature that prevents
undesired extension of the lens barrel when carrying the
camera/lens unit on a neck strap.
Anomalous Dispersion (AD) for Better Color Correction
Anomalous dispersion (AD) 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 (colors) 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 aber-ration for
wide-angle lenses (or zooms used at wide-angle settings.)
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 the ultimate in image quality, and at
the same time produce lenses that offer remarkable zoom ranges in
extraordinarily compact packages. By perfecting theses
cutting-edge advances for series production, Tamron has advanced
the state of optical design, and 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.