1. Introducció
This manual provides comprehensive instructions for the proper use, setup, operation, and maintenance of your Sigma 28-80mm F3.5-5.6 Aspherical Macro HF Lens. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity.
2. Producte acabatview
The Sigma 28-80mm F3.5-5.6 Aspherical Macro HF Lens is a versatile zoom lens designed for Minolta-AF cameras. It features an aspherical element for improved optical performance and a macro function for close-up photography. The "HF" designation indicates a helical focusing mechanism.
Figura 2.1: Davant view of the Sigma 28-80mm F3.5-5.6 Aspherical Macro HF Lens. This image displays the lens barrel with its various rings and markings, including the zoom ring, focus ring, aperture scale, and the "28-80mm HF" and "ASPHERICAL" labels.
2.1 Components de la lent
- Anell de zoom: Used to adjust the focal length between 28mm and 80mm.
- Anell de focus: S'utilitza per a l'enfocament manual.
- Aperture Ring/Scale: Displays the current aperture setting (F3.5-F22).
- Escala de distància: Indicates the focusing distance in meters and feet.
- Macro Switch/Setting: Engages the macro function for close-up photography.
- Muntatge de la lent: Connects the lens to the camera body (Minolta-AF mount).
3. Configuració
3.1 Fixació de la lent
- Assegureu-vos que tant la càmera com l'objectiu estiguin apagats.
- Traieu la tapa posterior de l'objectiu i la tapa del cos de la càmera.
- Align the mounting index (usually a red or white dot) on the lens with the corresponding index on the camera body.
- Insert the lens into the camera mount and rotate it clockwise (for Minolta-AF) until it clicks securely into place. Do not force the lens.
3.2 Desmuntatge de la lent
- Assegureu-vos que la càmera estigui apagada.
- Mentre premeu el botó d'alliberament de l'objectiu del cos de la càmera, gireu l'objectiu en sentit antihorari fins que es desenganxi.
- Col·loqueu immediatament la tapa posterior de l'objectiu a l'objectiu i la tapa del cos a la càmera per protegir el sensor i els elements de l'objectiu de la pols.
4. Instruccions de funcionament
4.1 Ampliació
To change the focal length, rotate the zoom ring on the lens barrel. The lens can be set anywhere between 28mm (wide-angle) and 80mm (telephoto). The current focal length is indicated by the markings on the lens barrel.
4.2 Enfocament
This lens supports both autofocus (AF) and manual focus (MF). The camera body controls the autofocus mechanism. For manual focusing, rotate the focus ring until the subject appears sharp in the viewfinder or on the camera's display. The distance scale on the lens provides an approximate focus distance.
4.3 Control d'obertura
The lens features a variable maximum aperture of F3.5 at 28mm and F5.6 at 80mm. The aperture can be adjusted via the camera's controls. The aperture scale on the lens barrel indicates the range of available apertures, typically from the maximum aperture to F22.
4.4 Funcions macro
To engage the macro function for close-up photography, set the zoom ring to the designated macro range (often marked on the lens, e.g., 80mm). Then, activate the macro switch or rotate the focus ring into the macro area. This allows for closer focusing distances and higher magnification ratios. Refer to the lens markings for specific macro engagement instructions.
5. Manteniment
5.1 Neteja de la lent
- Use a blower brush to remove dust and loose particles from the lens surfaces.
- Per a taques o empremtes dactilars, apliqueu una petita quantitat de solució netejadora de lents a un drap de microfibra net i netegeu suaument la lent amb moviments circulars des del centre cap a l'exterior.
- Never use abrasive materials or harsh chemicals.
5.2 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.
- Consider using a dehumidified storage cabinet if you live in a humid environment to prevent mold growth.
6. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Lens not attaching securely | Incorrect alignment; debris on mount | Ensure alignment marks match; clean mount area; rotate until click. |
| L'enfocament automàtic no funciona | Camera AF/MF switch set to MF; poor lighting; dirty contacts | Check camera settings; ensure sufficient light; clean lens and camera contacts. |
| Les imatges són borroses | Incorrect focus; camera shake; dirty lens elements | Verify focus; use faster shutter speed or tripod; clean lens. |
| Dust inside lens | Normal accumulation over time; improper storage | Minor dust does not typically affect image quality. For significant dust, contact a professional service center. |
7. Especificacions
| Característica | Detall |
|---|---|
| Número de model | s1-3/62 |
| Distància focal | 28-80 mm |
| Apertura màxima | F3.5 (at 28mm) - F5.6 (at 80mm) |
| Obertura mínima | F22 |
| Tipus de lent | Zoom, Aspherical, Macro, HF |
| Muntatges compatibles | Minolta AF |
| Pes de l'article | 13.6 unces (aproximadament 385 grams) |
| Dimensions del paquet | 5.4 x 4.2 x 4.1 polzades |
| Fabricant | Sigma Corporation |
| ASIN | B000050445 |
8. Garantia i Suport
For information regarding the warranty period and terms for your Sigma lens, please refer to the warranty card included with your product or visit the official Sigma website. For technical support, service, or inquiries about replacement parts, please contact Sigma customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.
Sigma Global Weblloc: www.sigma-global.com
