1. Inngangur
Þakka þér fyrir kaupinasing 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.
Helstu eiginleikar eru:
- HSM (Hyper-Sonic Motor): Provides fast, quiet, and precise autofocus, with full-time manual focus override.
- Aspherical linsuþættir: 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. Uppsetning
2.1 Að festa linsuna
- Gakktu úr skugga um að bæði myndavélin og linsan séu slökkt.
- Fjarlægðu aftari linsulokið af linsunni og lokið á myndavélinni.
- Align the mounting index mark on the lens barrel with the corresponding mark on the camera body.
- Settu linsuna í myndavélarfestinguna og snúðu henni réttsælis þar til hún smellpassar. Ekki þvinga linsuna.
2.2 Að fjarlægja linsuna
- Gakktu úr skugga um að slökkt sé á myndavélinni.
- Á meðan þú ýtir á losunarhnappinn fyrir linsuna á myndavélinni skaltu snúa linsunni rangsælis þar til hún stöðvast.
- Fjarlægðu linsuna varlega úr myndavélarhúsinu.
- Festið aftari linsulokið á linsuna og lok hússins á myndavélina til að vernda skynjarann og linsuhlutana.
2.3 Að festa linsuhlífina
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.

Mynd 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. Notkun linsunnar
3.1 Fókus
This lens features a Hyper-Sonic Motor (HSM) for fast and quiet autofocus. It also allows for full-time manual focus override.
- Sjálfvirk fókus (AF): Set the AF/MF switch on your camera body to 'AF'. The lens will automatically focus when the shutter button is half-pressed.
- Handvirk fókus (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 Aðdráttur
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. Viðhald
4.1 Þrif á linsunni
- Notið blásarabursta til að fjarlægja ryk og lausar agnir af yfirborði linsunnar.
- For smudges or fingerprints, apply a small amount of lens cleaning solution to a clean microfiber cloth and gently wipe the lens in a circular motion from the center outwards.
- Notið aldrei slípiefni eða sterk efni.
4.2 Geymsla
- Setjið alltaf fram- og aftari linsulok á þegar linsan er ekki í notkun.
- Geymið linsuna á köldum, þurrum stað, fjarri beinu sólarljósi og miklum hita.
- Ef geymt er í langan tíma skal íhuga að nota rakabindandi efni til að koma í veg fyrir mygluvöxt.
4.3 Meðhöndlunarráðstafanir
- Avoid exposing the lens to water or excessive humidity.
- Ekki láta linsuna detta eða verða fyrir hörðum höggum.
- Do not attempt to disassemble the lens, as this will void the warranty.
5. Bilanagreining
5.1 Sjálfvirk fókus virkar ekki
- Check if the AF/MF switch on your camera body is set to 'AF'.
- Gakktu úr skugga um að nægilegt ljós og birtuskil séu í umhverfinu til að sjálfvirka fókuskerfið virki á skilvirkan hátt.
- Hreinsið rafmagnstengi bæði á linsunni og myndavélarhúsinu með hreinum, þurrum klút.
5.2 Image Quality Issues (e.g., blurry images)
- Gakktu úr skugga um að linsan sé vel fest við myndavélarhúsið.
- 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.
- Gakktu úr skugga um að linsuhlutarnir séu hreinir og lausir við bletti eða ryk.
- 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. Tæknilýsing
| Eiginleiki | Forskrift |
|---|---|
| Brennivídd | 10-20 mm |
| Hámarks ljósop | f/4-5.6 |
| Tegund linsu | Ultra-Wide Angle Zoom |
| Samhæfðar festingar | Sony A-mount, Sony E-mount (with adapter) |
| Lágmarks fókusfjarlægð | Um það bil 9.4 tommur (24 cm) |
| Síustærð | (Not specified in provided data, typically 77mm or 82mm for similar lenses) |
| Mál (þvermál x lengd) | 3.19 x 3.29 x 3.19 tommur (u.þ.b.) |
| Þyngd | 1.78 pund (u.þ.b.) |
| Tegundarnúmer vöru | Sigma-10-20-Sony |
7. Ábyrgð og stuðningur
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 webvefsíðu fyrir ítarlegar ábyrgðarskilmála sem eiga við um þitt svæði.
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.





