1. Introducció
This manual provides comprehensive instructions for the proper use, maintenance, and troubleshooting of your Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens. This high-performance lens is optimized for digital SLR cameras, offering a versatile telephoto zoom range with integrated tele-macro functionality.
Designed with two Special Low Dispersion (SLD) glass elements, the lens effectively minimizes chromatic aberrations. Its multi-layer coating reduces flare and ghosting, common issues in digital photography, ensuring optimal color balance throughout the zoom range. The macro feature allows for close-up photography at specific focal lengths, making it suitable for a wide array of photographic applications including portraits, sports, and nature.
2. Què hi ha a la caixa
En desempaquetar, assegureu-vos que hi hagi tots els elements següents:
- Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens
- Parasol de l'objectiu
- Tap de l'objectiu frontal
- Tap de la lent posterior
- Bossa

Image: The included black Sigma lens pouch, designed for protective storage and transport of the lens.
3. Identificació de peces
Familiaritzeu-vos amb les diverses parts de la vostra lent:

Imatge: Frontal view of the Sigma 70-300mm lens, highlighting its various rings and switches.
- Front Element: The outermost glass element of the lens.
- Filtre de fil: Located around the front element, used for attaching filters.
- Anell de focus: S'utilitza per a l'enfocament manual.
- Anell de zoom: Used to adjust the focal length (70mm to 300mm).
- Interruptor de mode d'enfocament (AF/MF): Toggles between Autofocus and Manual Focus.
- Macro Switch: Engages the macro mode at specific focal lengths.
- Muntatge de la lent: The rear part of the lens that attaches to the camera body.
4. Configuració
4.1 Fixació de la lent
- Assegureu-vos que tant la càmera com l'objectiu estiguin nets i sense pols.
- Traieu la tapa posterior de l'objectiu i la tapa del cos de la càmera.
- Align the mounting index (usually a white or red dot) on the lens with the corresponding index on your camera body.
- Insert the lens into the camera mount and rotate it clockwise (for Canon EF mount) until it clicks into place. Do not force the lens.
4.2 Desmuntatge de la lent
- Apagueu la càmera.
- Premeu i manteniu premut el botó d'alliberament de l'objectiu del cos de la càmera.
- While holding the button, rotate the lens counter-clockwise until it detaches from the camera body.
- Immediately attach the rear lens cap to the lens and the body cap to your camera to protect the sensor and lens elements from dust.
5. Funcionament de l'objectiu
5.1 Focusing (Autofocus and Manual Focus)
This lens supports both autofocus (AF) and manual focus (MF).
- To switch between modes, use the Interruptor AF/MF located on the side of the lens barrel.
- In Enfocament automàtic (AF) mode, the camera will automatically focus when the shutter button is half-pressed. Note that the autofocus motor on this lens can be audible during operation.
- In Enfocament manual (MF) mode, rotate the focus ring on the lens barrel to achieve sharp focus. Ensure the camera's focus mode is also set to MF if applicable.
- Important: Avoid rotating the focus ring manually when the lens is set to AF mode, as this can damage the internal focusing mechanism.
5.2 Ampliació
To adjust the focal length, rotate the anell de zoom on the lens barrel. The lens covers a range from 70mm (wide telephoto) to 300mm (super telephoto).
5.3 Funcions macro
The lens features a dedicated macro mode for close-up photography:
- The macro function can only be engaged when the focal length is set between 200 mm i 300 mm.
- To activate, slide the Interruptor de macro on the lens barrel.
- In macro mode, the minimum focusing distance is reduced to approximately 37.4 inches (95 cm), allowing for a maximum magnification ratio of 1:2 at 300mm.
- To exit macro mode, slide the switch back to the normal position. You may need to adjust the focus or zoom slightly to disengage the macro lock.
6. Manteniment
6.1 Neteja de la lent
- Elements de la lent: Use a lens blower brush to remove dust. For smudges or fingerprints, use a clean microfiber lens cloth with a small amount of lens cleaning solution. Wipe gently in a circular motion from the center outwards.
- Cos de la lent: Netegeu amb un drap suau i sec. Per a la brutícia resistent, netegeu lleugerament.amp es pot fer servir un drap, seguit d'un drap sec.
- No utilitzeu: Solvents, alcohol, or abrasive cleaners, as these can damage the lens coatings or plastic parts.
6.2 Emmagatzematge
- Col·loqueu sempre les tapes frontal i posterior de l'objectiu quan no l'utilitzeu.
- Guardeu la lent en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- If storing for extended periods, consider using a dehumidifying agent to prevent mold growth, especially in humid environments.
- Store the lens in its included pouch for added protection.
7. Solució De Problemes
Aquesta secció tracta problemes comuns que podeu trobar amb el vostre objectiu.
| Problema | Causa possible | Solució |
|---|---|---|
| Lens not focusing (Autofocus) | Lens set to MF; insufficient light; subject too close; camera settings. | Switch lens to AF; ensure adequate lighting; check minimum focusing distance; verify camera AF settings. |
| Les imatges són borroses | Incorrect focus; camera shake; dirty lens; slow shutter speed. | Re-focus; use a tripod or faster shutter speed; clean lens elements; increase ISO or aperture. |
| L'objectiu no s'enganxa a la càmera | Misalignment; obstruction. | Ensure alignment marks match; check for debris on mount; do not force. |
| Macro mode not engaging | Focal length outside 200-300mm range. | Adjust zoom to 200mm or higher before engaging macro switch. |
For issues not listed here, or if problems persist, please refer to your camera's instruction manual or contact Sigma customer support.
8. Especificacions
Detailed technical specifications for the Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens:
| Característica | Detall |
|---|---|
| Número de model | 508101 |
| Distància focal | 70-300 mm |
| Apertura màxima | f/4-5.6 |
| Tipus de lent | Telephoto Zoom with Macro Function |
| Muntatges compatibles | Cànon EF |
| Minimum Focusing Distance (Normal) | 59.1 polzades (150 cm) |
| Minimum Focusing Distance (Macro) | 37.4 inches (95 cm) at 200-300mm |
| Relació d'ampliació màxima | 1:2 (at 300mm in Macro mode) |
| Construcció de lents | 14 elements in 10 groups (includes SLD glass elements) |
| Mida del filtre | 58mm (typical for this model) |
| Dimensions del producte | 4.8 x 3.03 x 3.03 polzades (12.2 x 7.7 x 7.7 cm) |
| Pes de l'article | 1.21 lliures (0.55 kg) |

Imatge: Lateral view of the Sigma 70-300mm lens, illustrating its approximate length of 5.3 inches (13 cm).
9. Garantia i Suport
For information regarding the product warranty, please refer to the warranty card included with your purchase or visit the official Sigma weblloc. Els termes i condicions de la garantia poden variar segons la regió.
If you require technical assistance, have questions about your lens, or need to arrange for service, please contact Sigma customer support. Contact details can typically be found on the Sigma weblloc web o a la documentació que s'inclou amb l'objectiu.
Avís legal: Returns are accepted within 3 days of receipt, as per the product's important information.





