1. Įvadas
Ačiū, kad pirkoteasing the Sigma 28-135mm f/3.8-5.6 Aspherical IF Macro Lens. This versatile zoom lens is designed for Konica Minolta SLR cameras, offering a broad focal range from wide-angle to telephoto, along with macro capabilities. Its Aspherical and Internal Focusing (IF) design contributes to high optical performance and convenient operation. This manual provides essential information for the proper use, care, and maintenance of your lens.
2. Sąranka
2.1 Objektyvo pritvirtinimas
- Įsitikinkite, kad ir fotoaparatas, ir objektyvas yra išjungti.
- Nuimkite galinį objektyvo dangtelį nuo objektyvo ir korpuso dangtelį nuo fotoaparato.
- Align the mounting index (red dot) on the lens barrel with the mounting index on the camera body.
- Įstatykite objektyvą į fotoaparato objektyvo jungtį ir sukite jį pagal laikrodžio rodyklę, kol jis spragtelės į vietą. Nespauskite objektyvo per jėgą.

2.2 Objektyvo nuėmimas
- Įsitikinkite, kad fotoaparatas išjungtas.
- While pressing the lens release button on the camera body, turn the lens counter-clockwise until it stops.
- Atsargiai nuimkite objektyvą nuo fotoaparato korpuso.
- Uždėkite galinį objektyvo dangtelį ant objektyvo ir korpuso dangtelį ant fotoaparato, kad apsaugotumėte juos nuo dulkių ir pažeidimų.
2.3 Objektyvo gaubto pritvirtinimas
A lens hood (if supplied) helps to block extraneous light, reducing flare and ghosting. Align the lens hood with the front of the lens and turn it clockwise until it locks into position. To remove, turn it counter-clockwise.

3. Objektyvo valdymas
3.1 Mastelio keitimas
To change the focal length, rotate the zoom ring on the lens barrel. The focal length markings (28mm, 35mm, 50mm, 70mm, 100mm, 135mm) are indicated on the ring. Rotate towards 28mm for a wider angle of view and towards 135mm for a telephoto perspective.

3.2 Fokusavimas
This lens features both autofocus (AF) and manual focus (MF) capabilities. The Internal Focusing (IF) system ensures that the front of the lens does not rotate during focusing, which is beneficial when using polarizing filters.
- Automatinis fokusavimas (AF): Set the AF/MF switch on the lens (if present) or camera body to 'AF'. The camera will automatically focus when the shutter button is half-pressed.
- Rankinis fokusavimas (MF): Set the AF/MF switch to 'MF'. Rotate the focus ring on the lens barrel until the subject appears sharp in the viewieškiklis.
3.3 Makro funkcija
The lens offers a macro function for close-up photography. To engage the macro mode, typically you would zoom to the telephoto end (135mm) and then activate the macro switch or ring if available on the lens. Refer to your camera's manual for specific settings related to macro photography.

3.4 Diafragmos valdymas
The aperture (f/3.8-5.6) is controlled electronically by the camera body. Select your desired aperture setting through your camera's controls. The lens will communicate with the camera to set the appropriate aperture value.
4. Priežiūra
4.1 Objektyvo valymas
- Objektyvo elementai: Use a lens blower brush to remove dust. For smudges or fingerprints, use a clean, soft lens cloth and a small amount of lens cleaning fluid. Apply fluid to the cloth, not directly to the lens. Wipe gently in a circular motion from the center outwards.
- Objektyvo korpusas: Objektyvo korpusą nuvalykite minkštu, sausu skudurėliu. Nenaudokite organinių tirpiklių, tokių kaip dažų skiediklis ar benzenas.
4.2 Saugykla
- Objektyvą su uždėtais priekiniais ir galiniais dangteliais laikykite vėsioje, sausoje vietoje, apsaugotoje nuo tiesioginių saulės spindulių ir ekstremalių temperatūrų.
- Avoid storing the lens in areas with high humidity to prevent mold growth. If storing for extended periods, consider using a desiccant.
4.3 Tvarkymo atsargumo priemonės
- Saugokite objektyvą nuo kritimo ir stiprių smūgių.
- Do not leave the lens in direct sunlight for prolonged periods, as this can damage internal components.
- Laikykite objektyvą atokiau nuo stiprių magnetinių laukų.
5. Problemų sprendimas
| Problema | Galima priežastis | Sprendimas |
|---|---|---|
| Objektyvas nepritvirtintas prie fotoaparato | Incorrect alignment; obstruction | Ensure red dots are aligned; check for debris in mount. |
| Neveikia automatinis fokusavimas | AF/MF switch set to MF; insufficient light; dirty contacts | Set switch to AF; use flash or brighter conditions; clean lens and camera contacts. |
| Vaizdai neryškūs | Neteisingas fokusavimas; fotoaparato drebėjimas; nešvarus objektyvo elementas | Check focus mode and focus point; use a faster shutter speed or tripod; clean lens. |
| Zoom ring is stiff | Dust or debris; lack of lubrication | Clean exterior; if problem persists, professional service may be required. |
If you encounter issues not listed here or if the suggested solutions do not resolve the problem, please contact Sigma customer support or a qualified service technician.
6. Specifikacijos
| Funkcija | Aprašymas |
|---|---|
| Modelio numeris | 709-205 |
| Židinio nuotolis | 28-135 mm |
| Didžiausia diafragma | f/3.8-5.6 |
| Objektyvo tipas | Zoom, Macro |
| Montavimo tipas | Konica Minolta SLR |
| Optinis dizainas | Aspherical, Internal Focusing (IF) |
| Filtro dydis | 62 mm |
| Mažiausias fokusavimo atstumas | Not specified (typical for macro lenses, often around 0.5m or less) |
| Matmenys (paketas) | 6 x 4.5 x 4.5 colio |
| Prekės svoris | 14.5 uncijos |
| Gamintojas | „Sigma Corporation of America“ |
7. Informacija apie garantiją
Warranty terms and conditions for the Sigma 28-135mm f/3.8-5.6 Aspherical IF Macro Lens are typically provided at the time of purchase or can be found on the official Sigma Corporation of America website. Please retain your proof of purchase for warranty claims. The warranty generally covers manufacturing defects for a specified period from the date of purchase. It does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear.
8. Pagalba klientams
For technical assistance, service, or inquiries regarding your Sigma 28-135mm f/3.8-5.6 Aspherical IF Macro Lens, please contact Sigma Corporation of America directly. Contact information, including phone numbers and website details, can usually be found on their official websvetainėje arba dokumentuose, pridėtuose prie jūsų produkto.