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LENS TECHNOLOGY

Hyper-Sonic Motor (HSM):

HSM lenses are equipped with a motor driven by ultrasonic waves.
The motor makes high AF speeds and quiet shooting a reality.

Rear Focus:

RF lenses are equipped with a focusing system that moves the rear
lens group for high-speed, silent focusing.

Inner Focus:

IF lenses are equipped with a focusing system that moves the inner
lens group without changing the physical length of the lens, thereby
ensuring excellent stability in focusing. 

Teleconverter-Compatible Lens (CONV):

The “CONV” mark designates lenses that can be used with the APO
Teleconverter EX (sold separately).  The teleconverter increases the
focal length and interfaces with the AE (automatic exposure) function
of the lens.

EX Lens:

With uncompromised design ideas and high-level optical technology
and handling, these lenses, which are Sigma’s representative lenses,
meet the requirements of photographers at the highest level. 

Aspherical Lens:

The aspherical lens complex allows freedom of design, with high lens
performance, reduced number of components, and compact size.

APO Lens:

Using SLD, ELD, and other special low-dispersion glass, these lenses
are designed to minimize chromatic aberration and deliver the best
image quality possible.

Optical Stabilizer (OS):

This is a feature built into lenses that compensates for camera shake.
It dramatically expands the realms of photography by alleviating
camera movement when shooting handheld.

SIGMA Advanced Lens Technology 

SIGMA High-Performance Lens Series

DC Lens

These are dedicated digital SLR camera lenses with an image circle
designed to suit image sensors that correspond to APS-C size.  In-
house technology accumulated through the development of our digital
SLR camera was used to optimize optical performance for our digital
lenses.  This is a high-performance lens series that fuses technology such
as lens power layout and coating design with the know-how Sigma has
built up over many years of developing interchangeable lenses for SLR
cameras.  By reducing the diameter of the image circle, Sigma has
achieved a more compact, lightweight lens series.

* An image sensor larger than those corresponding to the APS-C size cannot be used in digital
SLR cameras, 35 mm SLR cameras, or APS film SLR cameras.  If such an element is used,
vignetting will occur on the picture surface.
The angle of view varies depending on which camera model the lens is used with.  
35mm format is approximately 1.5 - 2.0 times the focal length of the lens being used.

DG Lenss

These are high-performance lenses optimized for digital cameras.
They are ideal not only for 35 mm digital SLR cameras and film digital
SLR cameras but also for APS-C digital SLR cameras.  They deliver
superior image quality by correcting for all types of aberration,
especially distortion, and they have high resolution capability because
they minimize chromatic aberration of magnification, which is
particularly a problem for digital cameras.  What is more, these lenses
incorporate optical designs optimized for digital cameras and Sigma‘s own
Super Multi-Layer Coating technology, so they reduce flare and
ghosting due to reflection between the image sensor and lens
surfaces, and they provide high contrast and a wide range of tone.
They also provide enough peripheral brightness with little vignetting.

Sigma lens technology-- what photographers always rely on when they want to express themselves through images.

Sigma is always developing state-of-the-art optical technology to draw out the maximum possibilities of
single-lens reflex cameras and give photographers the tools they need to do exactly what they want,
and the fruits of that development are embodied in each and every Sigma lens. 

Summary of Contents for 10-20mm F4-5.6 EX DC / HSM

Page 1: ......

Page 2: ...al performance for our digital lenses This is a high performance lens series that fuses technology such as lens power layout and coating design with the know how Sigma has built up over many years of developing interchangeable lenses for SLR cameras By reducing the diameter of the image circle Sigma has achieved a more compact lightweight lens series An image sensor larger than those corresponding...

Page 3: ...ts are used for high image quality throughout the entire zoom range A Super Multi Layer Coating is used to reduce the occurrence of flare and ghosting and display high performance across the entire focusing range 17 70 F2 8 4 5 DC MACRO m m Lens Construction 12 Groups 15 Elements Minimum Focusing Distance 20 cm 7 9 in Magnification 1 2 3 Filter Size ø 72 mm 10 20 F4 5 6 EX DC HSM m m 10 20 F4 5 6 ...

Page 4: ...s and aspherical lens elements deliver high image quality throughout the entire zoom range A Super Multi Layer Coating is used to cut down on the occurrence of flare and ghosting The lens has a minimum focusing distance of 45 cm 17 7 inches at all focal lengths and a maximum photography magnification of 1 3 9 It also has an inner focus system so accepts a Petal type hood and a circular polarizing ...

Page 5: ...y and commemorative photos of groups WIDE ZOOM LENS 12 24mm F4 5 5 6 EX DG ASPHERICAL HSM This is an ultra wide zoom lens that opens up a brand new world of photography with an incredible angle of view of 122 It can be used for a variety of subjects with little distortion including vast landscapes highrise buildings and large groups of people The ideal lens for digital SLR cameras it is equipped w...

Page 6: ...isheye lenses can be used for creative expression It has a minimum focusing distance of 13 5 cm 5 3 inches and a maximum magnification of 1 4 6 The occurrence of flare and ghosting is minimized with a Super Multi Layer Coating and SLD Special Low Dispersion glass ensuring excellent image quality and superior correction of chromatic aberration A full circle can only be captured with full frame 35 m...

Page 7: ... cm 15 7 in Magnification 1 3 8 Filter Size ø 82 mm Lens Construction 15 Groups 16 Elements Minimum Focusing Distance 38 cm 15 0 in Magnification 1 5 8 Filter Size ø 77 mm 28 300mm F3 5 6 3 DG MACRO This is a large aperture standard zoom lens that can handle all kinds of scenes including shooting portraits landscapes and snapshots This compact lens has an open aperture value of F2 8 throughout the...

Page 8: ... aperture standard lens is capable of producing sharp high contrast images from open aperture with plenty of marginal illumination Perfect for portraits that make the most of the beautiful out of focus images obtained with an open aperture of F1 4 the lens offers the photographer a rich pallet of expression for all kinds of subjects The use of glass molded aspherical lenses provides superior corre...

Page 9: ...cro photography with a maximum magnification of 1 2 at the 300 mm focal length It also has a switch for changeover of focal lengths between 200 mm and 300 mm during macro photography It handles not only close up shots but also natural looking portraits of subjects at a distance as well as dynamic sports shots SLD Special Low Dispersion glass is used for superior correction of chromatic aberration ...

Page 10: ...to shoot sports action or the other side of the playing field events or capture the look on a mountain climber s face as he or she scales a high peak The angle of view can be seamlessly changed from 8 2 to 3 1 so the lens takes a lot of the footwork out of picture composition It is equipped with HSM for fast AF speeds and quiet shooting and is capable of full time manual focus With the addition of...

Page 11: ...fication 1 1 Filter Size ø 72 mm APO MACRO 150mm F2 8 EX DG HSM This is a large aperture medium macro lens ideal for shooting flowers in their natural setting Optimized power layout and lens composition ensure high image quality and a Super Multi Layer Coating minimizes the occurrence of flare and ghosting The lens delivers high resolution from life size shots to distant objects It has a screw typ...

Page 12: ...ide angle lens the background will appear remote and the distance from the subject to the background will be emphasized when the focal length of a telephoto lens is large the background will appear to be closer to the object To take advantage of this effect use a wide angle lens to capture both the background and the object and a telephoto lens to emphasize only the object Floating System 28 mm F1...

Page 13: ...O TELE CONVERTER 2x EX DG for SONY for NIKON Please see SPECIFICATION for compatibility of Tele Converters for PENTAX for CANON for SONY for NIKON for SIGMA 0085126 824402 0085126 824211 0085126 824556 0085126 824266 0085126 824273 for SIGMA 0085126 876401 0085126 876210 0085126 876555 0085126 876265 0085126 876272 LH730 02 0085126 580216 ZOOM LENS DC LENS 18 50 mm F2 8 EX DC MACRO 18 50 mm F2 8 E...

Page 14: ...6 APO DG MACRO 70 300mm F4 5 6 DG MACRO 100 300mm F4 APO EX DG HSM 120 300mm F2 8 APO EX DG HSM 120 400mm F4 5 5 6 APO DG OS HSM 2 150 500mm F5 6 3 APO DG OS HSM 2 300 800mm F5 6 APO EX DG HSM 8mm F3 5 EX DG CIRCULAR FISHEYE 2 15mm F2 8 EX DG DIAGONAL FISHEYE 20mm F1 8 EX DG ASPHERICAL RF 24mm F1 8 EX DG ASPHERICAL MACRO 28mm F1 8 EX DG ASPHERICAL MACRO 50mm F2 8 EX DG MACRO 70mm F2 8 EX DG MACRO ...

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