SIGMA SD1 18-35mm F1.8 DC HSM Lens Instructions

: June 13, 2024
: SIGMA

Table of Contents

DESCRIPTION OF THE PARTS (fig.1)
DC LENS
ATTACHING TO THE CAMERA BODY
SETTING THE EXPOSURE MODE
FOCUSING AND ZOOMING
FLASH PHOTOGRAPHY
LENS HOOD
FILTER
BASIC CARE AND STORAGE
TECHNICAL SPECIFICATIONS
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SIGMA SD1 18-35mm F1.8 DC HSM Lens Instructions

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)

Filter Attachment Thread
Focus Ring
Distance Scale
Focus Index Line
Focus Mode Switch
Zoom Ring
Mount
Lens Hood

DC LENS

These are special lenses that are designated for digital cameras because the lens image circle is designated to correspond 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 in digital cameras or 35mm SLR cameras. If such an element is used vignetting will occur on the picture surface.
If you use SD1 / SD1 Merrill digital camera, corresponding angle of view will be 27-52.5mm.
If you use SD15 / SD14 / SD10 / SD9 digital camera, corresponding angle of view will be 30.6-59.5mm.

ATTACHING TO THE 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 electrical contacts. Please keep them clean to ensure proper connection. To avoid damaging the lens, be especially sure to place the lens with its front end down while changing the lens.

SETTING THE EXPOSURE MODE

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

FOCUSING AND ZOOMING

This lens features Sigma’s built-in Hyper Sonic Motor (HSM). The HSM enables quick and quiet autofocusing.

SIGMA AF and CANON AF
For autofocus operation, set the focus mode switch on the lens to the “AF” position (fig.2).

If you wish to focus manually, set the focus mode switch on the lens to the “M” position. You can adjust the focus by turning the focus ring.

NIKON AF , PENTAX AF and SONY

For autofocus operation, set the camera to AF mode and set the focus mode switch on the lens to the “AF” position (fig.2). If you wish to focus manually, set the focus mode switch on the lens to the “M” position. You can adjust the focus by turning the focus ring.

Please refer to camera’s instruction manual for details on changing the camera’s focusing mode.
For Nikon, Pentax and Sony mounts, it is only possible to use AF with camera bodies which support motors driven by ultrasonic waves such as HSM. AF will not function if the camera body does not support this type of motor.
This lens also permits manual focusing even in the autofocus mode. With the camera set to the One-Shot AF (AF-S) mode, it is possible to manually override the autofocus while the shutter release button is pressed halfway.
When operating this lens in manual focus mode, it is recommended that correct focus be confirmed visually in the viewfinder rather than relying on the distance scale. This is due to possible focus shift resulting from extreme changes in temperature which cause various components in the lens to expand and contract. Special allowance is made for this at the infinity setting.

Zooming

FLASH PHOTOGRAPHY

The camera’s built-in flash will cause barrel shadow if used with this lens. For best results, please only use an external flash unit.

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 to place the lens and hood into the storage case, you must first remove the hood, then replace it on the lens in the reverse position. **(fig.4)

**

FILTER

Only one filter 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.

BASIC 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 place, preferably with good ventilation. 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, moistenedlens cloth or lens tissue.
This lens is not waterproof. When you use the lens in the rain or near water, keep it from getting wet. It is often impractical to repair the internal mechanism, lens elements and electric components damaged by water.
Sudden temperature 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.