User Guide
34 35
EX LENS
Sigma’s professional-grade prime
lenses and wide-aperture zoom lenses
that maintain their maximum F-number
regardless of zoom position.
*There are some exceptions.
EX
HYPER-SONIC MOTOR
Using a motor driven by ultrasonic waves,
these lenses offer speedy autofocusing
and quiet operation.
HSM
*
ASPHERICAL LENS
Aspherical lenses offer greater design
latitude, raise performance, permit use
of fewer lens elements, and allow a
more compact size.
ASP
INNER FOCUS
To increase stability, this lens con-
figuration uses movable internal lens
elements that adjust focus without
changing the length of the lens barrel.
IF
LOW DISPERSION LENS
These lenses include one or more ele-
ments made of ELD (Extraordinary Low
Dispersion), FLD (“F” Low Dispersion),
or SLD (Special Low Dispersion) glass,
which help minimize chromatic aberra-
tion, which can harm image quality.
ELD/FLD/SLD
REAR FOCUS
Rear focus is one type of Sigma inner
focus system, in which focusing is per-
formed by moving particular elements
within the lens interior.
RF
OPTICAL STABILIZER
An Optical Stabilizer mechanism built
into the lens helps assure a sharp image
while giving you freedom of movement
and more latitude in camera settings.
OS
*
TELECONVERTER-COMPATIBLE LENS
This indicates a lens that will accept
available Sigma TELE CONVERTER DG
attachments, which increase focal
length and support AE (automatic expo-
sure) operation.
CONV
*Note: OS and HSM are not included on mounts for certain camera systems. Please refer to the major distinguishing characteristics on 38-39 page.
Abbreviations used in this catalog to indicate function
FUNCTION
17-70mm
Indicates range of focal length. The
larger the number, the greater the mag-
nication of distant objects. The smaller
the number, the wider the angle of view.
F2.8-4
Indicates maximum aperture. The
smaller the number, the “faster” the
lens, meaning more light can enter to
allow shooting under dim illumination.
If only a single gure is given, the lens
is a prime (fixed focal length) lens or
a zoom lens that maintains the same
F-number regardless of zoom position.
If the maximum aperture of a zoom lens
changes depending on zoom position, it
is expressed thus: F2.8-4.
EX
Indicates Sigma’s professional-grade
prime and zoom lenses. Generally, these
lenses retain the same maximum aper-
ture regardless of zoom position.
DC/DG/DN
Indicates high-performance lenses
designed especially for cameras with
APS-C size image sensors. Vignetting
will result if used on larger sensors.
Lenses suitable for cameras having full-
frame sensors are indicated by the DG
mark, and lenses exclusively for mirror-
less interchangeable lens cameras are
indicated by the DN mark.
OS
Indicates lenses incorporating an Op-
tical Stabilizer (OS) to compensate for
camera shake.
HSM
Indicates lenses equipped with a hyper-
sonic motor.
Please refer to the examples below to interpret the Sigma product names listed in
this catalog. For further details on abbreviations, please refer to the major distin-
guishing characteristics on pages 28-29
Abbreviations used in the product names in this catalog
REFERENCE
17-70mm F2.8-4 DC MACRO OS HSM /
DC MACRO HSM
Hood (LH780-03) included
High-performance and compact—large-aperture APS-C format standard zoom lens
Covering the standard zoom range, the lens has a focal range equivalent to 25.5-105mm on a
35mm lens. Thanks to Sigma's latest technologies, it's exceptionally lightweight and 30% more
compact by volume than previous lenses of its type. Its low F-number equips photographers to
shoot subjects at extremely close range, making this the perfect lens for travel, family photos, ar
-
tistic compositions, and many other uses. A complement to uncompromising optical performance,
HA680-01
UPC code: 928032
HA780-01
UPC code: 928049
HA850-01
UPC code: 927332
HA927-01
UPC code: 929336
HA1030-01
UPC code: 927318
LH520-03
UPC code: 929831
LH586-01
UPC code: 923473
LH635-01
UPC code: 501006
LH676-01
UPC code: 930226
LH680-03
UPC code: 928025
LH680-04
UPC code: 929008
LH686-01
UPC code: 929824
LH730-03
UPC code: 929466
LH780-03
UPC code: 929602
LH780-05
UPC code: 927936
LH780-06
UPC code: 930127
LH780-07
UPC code: 930592
LH825-03
UPC code: 916800
LH830-02
UPC code: 930233
LH830-03
UPC code: 931346
LH850-02
UPC code: 927301
LH873-01
UPC code: 926939
LH876-02
UPC code: 930189
LH876-03
UPC code: 931742
LH880-02
UPC code: 932480
LH927-01
UPC code: 926052
LH927-02
UPC code: 933128
LH1030-01
UPC code: 927059
LH1050-01
UPC code: 931339
LH1164-01
UPC code: 930615
LH1196-01
UPC code: 194000
LH1220-01
UPC code: 929657
LH1388-01
UPC code: 933111
LH1571-01
UPC code: 151003
LH1571-02
UPC code: 921637
LENS ACCESSORIES LENS HOOD
LENS ACCESSORIES HOOD ADAPTER