Specification Sheet

VC
AF
16mm
(equivalent to 25mm*)
10mm
(equivalent to 16mm*)
18mm
(equivalent to 28mm*)
24mm
(equivalent to 37mm*)
28mm
(equivalent to 43mm*)
35mm
(equivalent to 54mm*)
50mm
(equivalent to 78mm*)
70mm
(equivalent to 109mm*)
90mm
(equivalent to 140mm*)
150mm
(equivalent to 233mm*)
200mm
(equivalent to 310mm*)
300mm
( equivalent to 465mm*)
400mm
( equivalent to 620mm*)
600mm
( equivalent to 930mm*)
82°
76°
60°
53°
43°
31°
22°
18°
10°
8°
5°
2°
30mm
(equivalent to 47mm*)
50°
45mm
(equivalent to 70mm*)
34°
109°
15mm 30mm 24mm 35mm 50mm 70mm 90mm 150mm 200mm 400mm 300mm 600mm
4°
6°
4°
8°
12°
16°
27°
34°
47°
63°
71°
84°
110°
28mm
75°
45mm
51°
Top row: 35mm - full-format
Bottom row: APS-C sensor (crop factor 1.55)
*equivalent to small format - large format
Focal length comparison
Signal
Mechanical pressure
generation
Piezo electronic
element
Metal tip
Rotor
Internal focusing - Many practical advantages
IF
Internal focusing has a range of advantages for photog-
raphers: The lens is simpler to use because the extension
length does not change when focusing. The lens lter ring
does not turn with the lens when focusing, which makes it
easier to take photos with polarisation and graduated lters.
The shortest focusing distance over the entire focus area is
signicantly lower. Also, loss of light at the edges of the image
(vignetting) and focus-related image defects are minimised.
Zoom-lock mechanism
ZL
The zoom-lock mechanism developed
by Tamron stops the lens barrel extend-
ing by itself when it is not being used.
The lens is protected against damage
and can still be attached quickly.
Multiple-cam mechanism - a stable
and reliable chassis for zoom lenses
To make our compact, high-performance zoom lenses, we
had to develop a lens chassis that allowed the barrel to extend
evenly and smoothly. The Multiple-Cam mechanism allows
several precision curves to be worked into a cylindrical surface.
The mechanism allows very compact measurements for wide-
angle lenses and precise extension of telephoto lenses.
Integrated Focus-Cam - Optimum Internal Focusing
The Integrated Focus-Cam System from Tamron synchro-
nises the internal focusing movements with the Multiple-
Cam mechanism. It helps to coordinate the smooth and
precise positioning of all of the internal components
with the external elements for zoom and focusing.
Moisture-resistant and dust-proof construction
MP+DR
The lens's moisture-resistant and dust-proof construction
has been improved signicantly. Special sealing elements on the
switches and mechanical interfaces, e.g. between the focus ring and
lens casing, prevents the ingress of dirt, dust and water splashes.
This expands the opportunities open to the photographer and means
the lens can perform even under harsh, adverse conditions.
Well-protected against splashing water
MR
Special integrated seals protect your equipment in poor
weather conditions. This is mainly visible in the seal on the ne
rubber bead on the bayonet mount, but also elsewhere.
Piezo drive - faster and more compact AF motor
PZD
Tamron’s Piezo Drive (PZD) ultrasonic
auto-focus motor lets us build an ultra-compact,
high-performance lens. The abbreviation
PZD can usually be found in the handy and
simple Megazoom lenses, which cover an
extraordinarily wide range of focal lengths.
The motors are smaller and also benet
from fast auto-focus, high precision and
almost a complete lack of running noise.
Vibration Compensation - The ultimate in image stabilisation,
by Tamron
VC
The VC (vibration compensation) mechanism developed by
Tamron balances unwanted movement in diagonal, horizontal and
vertical directions. The optical image stabilisation is controlled by
highly-sensitive gyro sensors. The VC lens group utilises low-friction
ball bearings, making the construction simple, effective and
robust. Thanks to the VC mechanism, the photographer gains
up to 5 f-stops when shooting by hand and gets an extremely
stable viewnder picture. Even in difcult photographic situations,
you can focus all of your attention on the creative process.
SONY DSLR
For a Sony mount without a VC image stabiliser, because
most Sony DSLR cameras already have an integrated image stabiliser.
TECHNOLOGY TECHNOLOGY
Structure of the VC unit in model 70-210mm F/4 Di VC PZD
The PZD ultrasonic
motor is located
in the rear of
the lens, directly
in front of the
bayonet mount.
The VC image stabiliser suppresses camera movement. Both
pictures were taken by hand under the same conditions.
VC - ONVC - OFF
Ultrasonic Silent Drive – High-performance focusing
USD
Ultrasonic Silent Drive (USD) auto-focus motors are used
in SP lenses. These high-performance drives convert ultrasonic
waves into torque, enabling highly precise, fast and almost
silent focusing. The principle uses a rotor and does not require a
transmission between the motor and the focus ring. This means the
photographer can change the focus setting at
any time without having to press a switch.
This makes USD lenses well suited for
fast-moving and dynamic subjects, such
as in nature and sports photography.
Step motor
Lens xture
Threaded nut
Threaded
spindle
Guide shaft
HLD – Tamron’s highly precise AF motor
HLD
The autofocus drive system uses
Tamron’s exclusive HLD motor (High/Low
Torque Modulated Drive). This energy-saving
motor generates outstanding drive torque to
allow precise and quiet focusing. Because
of its small size and arc shape, the HLD
motor takes up little space, so lenses can
be designed to be even more compact.
6 7
Driving coils
Magnet
Bracket
Bracket
Ceramic ball
VC element (compensation system)
VC micro-computer
Dual-MPU unit (Dual Micro-Processing Unit) – highest
speed and best VC performance
DMPU
Selected Tamron lenses* are equipped with a Dual
MPU Unit (Micro-Processing Unit). Two separate proces-
sor units allow digital signals from the VC image stabiliser
and USD autofocus to be processed at maximum speed.
This means, for example, that errors from the camera and AF
motor can be interpreted and corrected at lightning speed.
* SP 15-30mm F/2.8 Di VC USD G2, SP 24-70mm F/2.8 Di VC USD G2, SP 70-200mm
F/2.8 Di VC USD G2, SP 150-600mm F/5-6.3 Di VC USD G2, 100-400mm F/4.5-6.3
Di VC USD, 10-24mm F/3.5-4.5 Di II VC HLD and 70-210mm F/4 Di VC USD
Optimised Silent Drive – extremely quiet autofocus
OSD
The newly developed OSD module (Optimised Silent Drive)
allows silent focusing. This makes the lens ideal for situations
in which absolute silence is needed during photography. The
autofocus also reacts very quickly and
focuses precisely. This is notice-
able, for example, when tracking a
subject: the photographer will never
miss the perfect moment when
shooting fast-moving subjects.
Rapid eXtra-Silent Stepping
Drive – extremely precise and quiet
autofocus
RXD
The AF system is based on a RXD stepping motor (Rapid
eXtra-Silent Stepping Drive) with a drive element that precisely
controls the angle of rotation. A sensor continuously determines the
lens’s current focus setting, achieving quick and precise focusing
that also allows videographers
to keep moving objects in focus
continually. All the while, the
autofocus works so quietly that
there is no interference in the
video from focusing noise.