Sigma 10-20mm f/4-5.6 EX DC HSM Lens Instruction Manual

1. Okwu mmalite

Daalụ maka ịzụrụasing the Sigma 10-20mm f/4-5.6 EX DC HSM ultra-wide angle zoom lens. This lens is designed specifically for digital SLR cameras with APS-C size image sensors, offering an expansive field of view ideal for landscape, architectural, and interior photography. Its advanced optical design and Hyper-Sonic Motor (HSM) ensure high performance and user convenience.

Atụmatụ gụnyere:

• HSM (Hyper-Sonic Motor): Provides fast, quiet, and precise autofocus, with full-time manual focus override.
• Aspherical Lens Elements: Three aspherical lens elements effectively correct distortion and spherical aberrations.
• SLD (Special Low Dispersion) Glass: Three SLD glass elements minimize chromatic aberration for superior image quality.
• Internal Focusing System: Maintains the overall lens length during focusing and allows for the convenient use of polarizing filters.

2. Nhazi

2.1 Na-agbakwunye oghere

1. Ensure both the camera and lens are powered off.
2. Remove the rear lens cap from the lens and the body cap from the camera.
3. Align the mounting index mark on the lens barrel with the corresponding mark on the camera body.
4. Insert the lens into the camera mount and turn it clockwise until it clicks into place. Do not force the lens.

2.2 Wepụ oghere

1. Gbaa mbọ hụ na agbanyụrụ igwefoto.
2. While pressing the lens release button on the camera body, turn the lens counter-clockwise until it stops.
3. Carefully remove the lens from the camera body.
4. Attach the rear lens cap to the lens and the body cap to the camera to protect the sensor and lens elements.

2.3 Ịtinye Mkpuchi Lens

The included petal-type lens hood helps to block extraneous light and reduce flare. Align the red dot on the lens hood with the red dot on the front of the lens, then turn the hood clockwise until it locks into place. To remove, reverse the process.

Foto 1: The Sigma 10-20mm f/4-5.6 EX DC HSM lens. This image illustrates the general appearance of the lens, which attaches to compatible Sony Alpha DSLR camera bodies.

3. Na-arụ ọrụ oghere

3.1 Na-elekwasị anya

This lens features a Hyper-Sonic Motor (HSM) for fast and quiet autofocus. It also allows for full-time manual focus override.

• Nchekwa onwe ya (AF): Set the AF/MF switch on your camera body to 'AF'. The lens will automatically focus when the shutter button is half-pressed.
• Ndozi akwụkwọ ntuziaka (MF): Set the AF/MF switch on your camera body to 'MF'. Rotate the focus ring on the lens barrel to adjust focus manually. Even in AF mode, you can fine-tune focus by rotating the focus ring after autofocus has been achieved.

3.2 mbugharị

To change the focal length, rotate the zoom ring on the lens barrel. The lens offers a focal range from 10mm (ultra-wide) to 20mm (wide-angle). The aperture will vary between f/4 at 10mm and f/5.6 at 20mm.

3.3 Iji ihe nzacha

The lens has a filter thread at the front. Due to its internal focusing system, the front element does not rotate, making it convenient to use polarizing filters or other special effect filters. Ensure the filter size matches the lens's filter thread diameter.

4. Nlekọta

4.1 Ihicha oghere

• Use a blower brush to remove dust and loose particles from the lens surfaces.
• Maka ihe ruru unyi ma ọ bụ mkpịsị aka, tinye obere ihe ngwọta nhicha lensi n'ime ákwà microfiber dị ọcha wee jiri nwayọ hichaa lensi ahụ n'ụzọ okirikiri site n'etiti gaa n'ihu.
• Ejila ihe ndị na-emebi emebi ma ọ bụ kemịkal siri ike mee ihe.

4.2 Nchekwa

• Na-etinye mkpuchi lensi n'ihu na n'azụ mgbe ọ bụla a naghị eji lensi ahụ.
• Debe lenzi ahụ n'ebe dị jụụ ma kpọọ nkụ, ebe anwụ na-anaghị anwụ kpọmkwem na oke okpomọkụ dị oke njọ.
• If storing for extended periods, consider using a dehumidifying agent to prevent mold growth.

4.3 Ijikwa kpachara anya

• Avoid exposing the lens to water or excessive humidity.
• Do not drop or subject the lens to strong impacts.
• Do not attempt to disassemble the lens, as this will void the warranty.

5. Nchọpụta nsogbu

5.1 Autofocus Not Working

• Check if the AF/MF switch on your camera body is set to 'AF'.
• Ensure there is sufficient light and contrast in the scene for the autofocus system to operate effectively.
• Clean the electrical contacts on both the lens and the camera body with a clean, dry cloth.

5.2 Image Quality Issues (e.g., blurry images)

• Hụ na lensi ahụ ejikọtara nke ọma n'ahụ igwefoto ahụ.
• Check your camera's shutter speed and aperture settings. A slow shutter speed can cause motion blur, and an incorrect aperture can lead to out-of-focus areas.
• Ensure the lens elements are clean and free from smudges or dust.
• If using manual focus, confirm that the subject is sharply focused.

5.3 Lens Not Recognized by Camera

• Remove the lens and reattach it, ensuring it clicks firmly into place.
• Clean the electrical contacts on both the lens and the camera body.
• Check your camera's firmware for updates, and ensure it is compatible with the lens.

6. Nkọwapụta

7. Akwụkwọ ikike na nkwado

Sigma lenses typically come with a limited warranty covering manufacturing defects. Please refer to the warranty card included with your product or visit the official Sigma websaịtị maka nkọwa zuru oke usoro na ọnọdụ nke akọwapụtara mpaghara gị.

For technical support, service, or inquiries regarding your Sigma 10-20mm f/4-5.6 EX DC HSM lens, please contact Sigma customer service through their official website or the authorized distributor in your country. Have your lens model number and purchase information ready when contacting support.