Sigma 201 DATASHEET

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ENGLISH

Thank you very much for purchasing a Sigma Lens. In order to get the maximum
performance and enjoyment out of your Sigma lens, please read this instruction booklet
thoroughly before you start to use the lens.

DESCRIPTION OF THE PARTS (fig.1)

① Filter Attachment Thread
② Focus Ring
③ Distance Scale
④ Focus Index Line
⑤ Zoom Ring
⑥ Focus Mode Switch
⑦ Mount
⑧ Lens Hood

(SIGMA SA / CANON AF / FOUR THIRDS)

DC LENS

These are special lenses that are designated for digi tal cameras because the lens image
circle is designated to correspo nd to the size of the image sensors of most digital SLR
cameras. The specialized design gives these lenses the ideal properties for digital cameras.

◆ An image sensor element larger than those corresponding to APS-C cannot be used i n
digital cameras or 35mm SLR cameras. If s uch an element is used vignetting will occur
on the picture surface.

◆ If you use SD14, SD10 or SD10 digital cameras, corresponding angle of view will be
17-34mm.

ATTACHING TO CAMERA BODY

When this lens is attached to the camera body it will automatically function in the same way
as your normal lens. Please refer to the instruction booklet for your camera body.

◆ On the lens mount surface, there are a number of couplers and electri cal contacts.
Please keep them clean to ensure pro per connection. To avoid damagi ng the lens, be
especially sure to place the lens with its front end down while changing the lens.

◆ Many accessories such as rear mounted teleconverters, extension tubes, etc., are
specially made for designated l enses. Before yo u purchase such accessori es, please
check your Sigma lens to determine that it is compatible and that the accessories will
function properly with it.

SETTING THE EXPOSURE MODE

The sigma lens functions automatically after mounting to your camera. Please, refer to the
camera instruction book.

FOCUSING AND ZOOMING

《FOR SIGMA AF, CANON AF, NIKON AF AND FOUR THIRDS》

This lens features Sigma’s built-in Hyper Sonic Motor (HSM). The HSM enables quick and
quiet autofocusing.
For autofocus operation, set the focus mode switch on the lens to “AF” position (fig.2) (for
Nikon AF, select the autofocus mode o n your camera body) (For Four-Thirds, select the
autofocus mode on your camera body and set t he focus mode switch on the lens to the
“AF” position).
If you wish to focus manually, set the focus mode switch on the lens to the “M” position.
(for Nikon AF, select the manual focus mode on your camera body as you would do
normally) (For Four-T hirds, sel ect the manual focus mode on yo ur camera body and set the
focus mode switch on the lens to the “M” p osi ti on). You can ad just t he focus by turning the
focus ring.

◆ This lens also permits manual focusing even i n the autofocus mode. With the camera

set to the One-Shot AF (AF-S) mode, you can adjust focus manually after the lens
autofocus (and stops), while the shutter button is pressed halfway. (In the case of
Four-Thirds fi tting, the setting method varies depending on the camera body. Please
follow the instruction manual of your camera body.)

◆ When operating this lens in manual foc us mode, i t i s recom me nded t hat correct fo c us be

confirmed visually in the viewfinder rat her than relyi ng on the di stance scale. This i s due
to possible focus shift resulting from extreme changes in temperature which cause
various components in the lens to expand and contact. Special allowance is made for
this at the infinity setting.

《FOR SONY AF AND PENTAX AF》

For autofocus operation, set the camera’s focus mode to AF.
If you wish to focus manually, set the camera’s focus mode to “MF” and adjust t he focus by
turning the focus ring.

◆ To avoid damagi ng AF mechanism, please do not t urn the focus ring manually while in

the autofocus mode.

◆ When operating this lens in manual foc us mode, i t i s recom me nded t hat correct fo c us be

confirmed visually in the viewfinder rathe r than relying on the distance scale. This is
due to possible focus shift resulting from extreme changes in temperature which c ause
various components in the lens to expand and contact. Special allowance is made for
this at the infinity setting.

《ZOOMING》

Rotate the Rubber grip on the zoom ring to the desired position.

LENS HOOD

A bayonet type detachable hood is provided with the lens. This lens hood helps to prevent
flare and ghosted images caused by bright illumination from outside the picture area.
Attach the hood and turn clockwise until it stops rotation. (fig.3)

◆ In order t o place the lens and hood into the storage cas e, you must first remove the
hood, then replace it on the lens in the reverse position. (fig.4)

FLASH PHOTOGRAPHY

Built-in flash of your camera may not cover angle of view of this l ens, and this may cause
light fall-off at the corners. When external flash is used, flip wide panel of your flashgun
down to cover flash’s head, before taking picture.
(This may not work with some flashguns, please test your equipment shootings
beforehand)

FILTER

◆ Only one fil ter should be used at the time. Two or more filters and/or special thicker
filters, like a polarizing filter, may cause vignetting.

◆ When using a polarizing filter with AF camera, use the “circular” type.

BAS IC CARE AND STORAGE

◆ Avoid any shocks or exposure to extreme high or low temperatures or to humidity.

◆ For extended storage, choose a cool and dry pl ace, preferably wi th good ventil ation. To

avoid damage to the lens coating, keep away from mothballs or naphthalene gas.

◆ Do not use thinner, benzine or other organic cleaning agents to remove dirt or finger
prints from the lens elements. Clean by using a soft, moistened lens cloth or lens tissue.

◆ This lens is not waterproof. When you use the lens in t he rain or near water, keep it
from getting wet. It is often impractical to repair the internal mechanism, l ens elements
and electric components damaged by water.

◆ Sudden temperat ure changes may cause condensation or fog to appear on the surface
of the lens. When entering a warm room from the cold outdoors, it is advisable to keep
the lens in the case until the temperature of the lens approaches room temperature.

TECHNICAL SPECIFICATIONS

Lens construction 10 - 14
Angle of View 102.4 – 63.8°
Minimum Aperture 22
Minimum Focusing Distance 24cm (0.79 ft)
Magnification 1:6.7
Filter Size 77mm
Dimensions Dia.×Length 83.5×81mm (3.3×3.2 in)
Weight 465g (16.4 oz)

Dimensions and weight include the SIGMA mount.

SIGMA (Deutschland) GmbH Carl-Zeiss-Str. 10/2, D-63322 Rödermark, F.R.GERMANY

Community (EC).