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

1. Introdución

Grazas pola compraasing 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.

As características principais inclúen:

• HSM (Hyper-Sonic Motor): Provides fast, quiet, and precise autofocus, with full-time manual focus override.
• Elementos de lente asférica: 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. Configuración

2.1 Colocación da lente

1. Asegúrate de que tanto a cámara como a lente estean apagadas.
2. Retire a tapa traseira da lente e a tapa do corpo da cámara.
3. Align the mounting index mark on the lens barrel with the corresponding mark on the camera body.
4. Insira a lente na montura da cámara e xire no sentido das agullas do reloxo ata que encaixe no seu lugar. Non force a lente.

2.2 Extracción da lente

1. Asegúrese de que a cámara estea apagada.
2. Mentres premes o botón de liberación da lente no corpo da cámara, xira a lente en sentido antihorario ata que pare.
3. Retire con coidado a lente do corpo da cámara.
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 Colocación da tapa da lente

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.

Figura 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. Funcionamento da lente

3.1 Focalización

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

• Enfoque automático (AF): Set the AF/MF switch on your camera body to 'AF'. The lens will automatically focus when the shutter button is half-pressed.
• Enfoque manual (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 Zoom

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 Using Filters

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. Mantemento

4.1 Limpeza da lente

• Use un cepillo soprador para eliminar o po e as partículas soltas das superficies das lentes.
• Para manchas ou pegadas dixitais, aplique unha pequena cantidade de solución de limpeza de lentes nun pano de microfibra limpo e limpe suavemente a lente con movementos circulares desde o centro cara a fóra.
• Nunca empregue materiais abrasivos nin produtos químicos agresivos.

4.2 Almacenamento

• Coloque sempre as tapas dianteira e traseira da lente cando non a estea a usar.
• Garda a lente nun lugar fresco e seco, lonxe da luz solar directa e de temperaturas extremas.
• Se o almacenas durante períodos prolongados, considera o uso dun axente deshumidificador para evitar a formación de mofo.

4.3 Precaucións de manexo

• 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 Solución de problemas

5.1 O enfoque automático non funciona

• 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)

• Comprobe que a lente estea fixada firmemente ao corpo da cámara.
• 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. Especificacións

7. Garantía e soporte

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 websitio web para obter termos e condicións de garantía detallados específicos da súa rexión.

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.