Sigma 635110, 635101, 635306, 635205 User Manual

October 2013

A | Art

SIGMA 24-105mm F4 DG OS HSM

Digital SLR cameras have been evolving rapidly, and more and more photographers have been seeking a lens that can
bring out the potential of a high-resolution sensor. There are occasions when photographers select zoom lenses as they
offer more convenience than a fixed focal length lens, yet they do not want to compromise on image quality. SIGMA
has long tackled this task to provide excellent quality images for such occasions. We are proud that SIGMA 24­105mm F4 DG OS HSM meets these requirements and is the standard zoom lens from our "Art" line, offering stable
and fine image quality from wide to mid-telephoto range. It has a combination of fixed aperture and a good zoom ratio
that we kept as high as possible. Many simulations were carried out before achieving this goal, and made the
specification compatible with 35mm full size image sensors. Moreover, it was designed to surpass the quality
inspection of the original MTF measuring system, A1, so it has succeeded in creating superior image quality for the
new standard of high-spec cameras.

● Angle of view differs on cameras to which the lens is attached.

Corresponding AF Mounts: Sigma, Nikon, Canon, Sony*

*Sony mount does not include Optical Stabilization

Accessories: Case and Petal Hood (LH876-02) supplied.

* The Appearance and specifications are subject to change without notice.

[Special Features]

Our Art line delivers high-level artistic quality

Sigma is organizing all its interchangeable lenses into three product lines; Contemporary, Art and Sports. Designed
with a focus on sophisticated optical performance and abundant expressive power, our Art line delivers high-level
artistic expression. Developed with the maximum emphasis on artistic touch, they are designed to meet the
expectations of users who value a creative, dramatic outcome above compactness and multifunction. Along with
landscapes, portraits, still-life, close-up and casual snaps, they are perfect for the kind of photography that unleashes
the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture,
starry skies, underwater shots and many other scenes.

Covering the standard shooting range of 35mm full size image sensor

The convenience of a zoom lens enables photographers to capture various subjects without the need to change lenses.
The SIGMA 24-105mm F4 DG OS HSM is the perfect lens in this respect as it covers the basic shooting range from
wide to mid-telephoto. Moreover, its constant aperture of F4, OS (Optical Stabilizer) and HSM (Hyper Sonic Motor)
enhances the lens’ usability. It is ideal for portraits, landscapes and general photography.

Superior image quality

This is a lens that represents the concept of our “Art” line, and it meets the highest standard of our quality test. For

those standard lenses with a high zoom ratio, they tend to show astigmatic aberration, field curvature, distortions and
color aberration. In order to compensate for these, various types of high-performance lenses, such as FLD, SLD and
glass-molded aspheric lenses including double-sided aspheric lens, have been included into the optical system. In
addition, it suppresses chromatic aberration very effectively at telephoto-end, and achieves superior image quality
throughout the zoom range. This lens overcomes low peripheral brightness that is common for those lenses with
similar specifications. Also, the wide filter size 82mm is contributing for superior optical performance.

Optical Stabilizer

This lens incorporates an OS system which offers superior stabilization, making it possible to compensate for camera
shake even in macro range photography where a small blur can be easily identified.

*Sony mount does not include Optical Stabilization