1. Introduktion
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. Hvad er der i æsken
Sørg for, at alle følgende ting er til stede ved udpakning:
- Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens
- Modlysblænde
- Frontlinsedæksel
- Bageste objektivdæksel
- Pung

Image: The included black Sigma lens pouch, designed for protective storage and transport of the lens.
3. Identifikation af dele
Familiarize yourself with the various parts of your lens:

Billede: Forside view of the Sigma 70-300mm lens, highlighting its various rings and switches.
- Front Element: The outermost glass element of the lens.
- Filtertråd: Located around the front element, used for attaching filters.
- Fokusring: Bruges til manuel fokusering.
- Zoomring: Used to adjust the focal length (70mm to 300mm).
- Fokustilstandsknap (AF/MF): Toggles between Autofocus and Manual Focus.
- Macro Switch: Engages the macro mode at specific focal lengths.
- Objektivmontering: The rear part of the lens that attaches to the camera body.
4. Opsætning
4.1 Montering af objektivet
- Sørg for, at både kameraet og objektivet er rene og fri for støv.
- Fjern det bagerste objektivdæksel fra objektivet og kamerahusdækslet fra dit kamera.
- 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 Afmontering af linsen
- Sluk dit kamera.
- Press and hold the lens release button on your camera body.
- 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. Betjening af objektivet
5.1 Focusing (Autofocus and Manual Focus)
This lens supports both autofocus (AF) and manual focus (MF).
- To switch between modes, use the AF/MF kontakt located on the side of the lens barrel.
- In Autofokus (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 Manuel fokus (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.
- Vigtig: Avoid rotating the focus ring manually when the lens is set to AF mode, as this can damage the internal focusing mechanism.
5.2 Zoomning
To adjust the focal length, rotate the zoomring on the lens barrel. The lens covers a range from 70mm (wide telephoto) to 300mm (super telephoto).
5.3 Makrofunktion
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 og 300 mm.
- To activate, slide the Makro switch 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. Vedligeholdelse
6.1 Rengøring af linsen
- Linseelementer: 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.
- Linsehus: Tør af med en blød, tør klud. Ved genstridigt snavs, tør med en letamp en klud kan bruges, efterfulgt af en tør klud.
- Brug ikke: Solvents, alcohol, or abrasive cleaners, as these can damage the lens coatings or plastic parts.
6.2 Opbevaring
- Sæt altid det forreste og bageste objektivdæksel på, når objektivet ikke er i brug.
- Opbevar linsen et køligt, tørt sted, væk fra direkte sollys og ekstreme temperaturer.
- 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. Fejlfinding
This section addresses common issues you might encounter with your lens.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| 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. |
| Billeder er slørede | 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. |
| Lens not attaching to camera | Forkert justering; obstruktion. | 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. Specifikationer
Detailed technical specifications for the Sigma 70-300mm f/4-5.6 DG APO Macro Telephoto Zoom Lens:
| Feature | Detalje |
|---|---|
| Modelnummer | 508101 |
| Brændvidde | 70-300 mm |
| Maksimal blænde | f/4-5.6 |
| Linsetype | Telephoto Zoom with Macro Function |
| Kompatible monteringer | CanonEF |
| Minimum Focusing Distance (Normal) | 59.1 tommer (150 cm) |
| Minimum Focusing Distance (Macro) | 37.4 inches (95 cm) at 200-300mm |
| Maksimal forstørrelsesforhold | 1:2 (at 300mm in Macro mode) |
| Linsekonstruktion | 14 elements in 10 groups (includes SLD glass elements) |
| Filterstørrelse | 58mm (typical for this model) |
| Produktdimensioner | 4.8 x 3.03 x 3.03 tommer (12.2 x 7.7 x 7.7 cm) |
| Varens vægt | 1.21 pund (0.55 kg) |

Billede: Side view of the Sigma 70-300mm lens, illustrating its approximate length of 5.3 inches (13 cm).
9. Garanti og support
For information regarding the product warranty, please refer to the warranty card included with your purchase or visit the official Sigma webGarantibetingelserne kan variere fra region til region.
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 website or in the documentation provided with your lens.
Juridisk ansvarsfraskrivelse: Returns are accepted within 3 days of receipt, as per the product's important information.





