1. Okwu mmalite
This instruction manual provides detailed information on the proper use, care, and maintenance of your Sigma Quantaray 100-300mm AF Lens. Please read this manual thoroughly before using the lens to ensure optimal performance and longevity. This lens is designed for Minolta Maxxum AF and Sony Alpha A-Mount cameras.
2. Ngwaahịa gafereview
The Sigma Quantaray 100-300mm AF Lens is a compact telephoto zoom lens, measuring less than 4 inches long and under 2.8 inches in diameter. It features original three-group zoom technology and incorporates Special Low Dispersion (SLD) glass to minimize color aberration, ensuring high optical performance across its 100-300mm focal range. This lens is suitable for various photographic applications, including portraiture, sports, and nature photography.

Figure 2.1: Sigma Quantaray 100-300mm AF Lens. Visible markings include focal lengths (100mm, 135mm, 200mm, 300mm) on the zoom ring and aperture settings (f/22, f/11) on the aperture ring, along with focus distance indicators in feet and meters.
3. Nhazi
3.1 Na-agbakwunye oghere
- Wepu okpu oghere azụ na okpu ahụ igwefoto.
- Align the mounting index mark on the lens barrel with the corresponding index mark on the camera body.
- Insert the lens into the camera's lens mount and turn it clockwise until it clicks into place. Ensure the lens is securely locked.
3.2 Detaching the Lens
- Gbanyụọ igwefoto.
- While pressing the lens release button on the camera body, turn the lens counter-clockwise until it stops.
- Carefully remove the lens from the camera body.
- Attach the rear lens cap to the lens and the body cap to the camera to protect them from dust and damage.
4. Na-arụ ọrụ oghere
4.1 mbugharị
To change the focal length, rotate the zoom ring on the lens barrel. The focal lengths (100mm, 135mm, 200mm, 300mm) are marked on the ring. Rotate towards 300mm for telephoto magnification and towards 100mm for a wider telephoto view.
4.2 Na-elekwasị anya
This lens supports both autofocus (AF) and manual focus (MF).
- Nchekwa onwe ya (AF): Set your camera to AF mode. The lens will automatically focus when the shutter button is half-pressed.
- Ndozi akwụkwọ ntuziaka (MF): Set your camera to MF mode. Rotate the focus ring on the lens barrel until the subject appears sharp in the viewfinder or on the camera's LCD screen. The focus distance scale (in feet and meters) is visible on the lens barrel to assist with manual focusing.
4.3 Njikwa oghere
Aperture settings are typically controlled via your camera body. The lens communicates with the camera to set the desired aperture. The lens barrel may display aperture markings (e.g., f/22, f/11) for reference, indicating the range of available apertures.
5. Nlekọta
5.1 Ihicha oghere
- Jiri ahịhịa a na-afụ ụfụfụ wepụ uzuzu n'elu anya ahụ.
- For smudges or fingerprints, use a clean, soft microfiber cloth specifically designed for optical lenses, along with a small amount of lens cleaning solution.
- Wipe gently in a circular motion from the center outwards.
- Emela use organic solvents like paint thinner or benzene to clean the lens.
5.2 Nchekwa
- Mgbe a naghị eji ya, tinye mkpuchi lensị ihu na azụ mgbe niile.
- Store the lens in a cool, dry place, away from direct sunlight and high humidity.
- Consider using a desiccant (e.g., silica gel) in the storage area to prevent mold growth.
- Avoid storing the lens near equipment that generates strong electromagnetic fields.
6. Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Lens does not focus (AF) | Camera set to MF; insufficient light; dirty lens contacts. | Set camera to AF; ensure adequate lighting; clean lens and camera contacts. |
| Onyonyo na-agba agba | Incorrect focus; camera shake; dirty lens element. | Check focus settings; use a tripod; clean lens. |
| Igwefoto amataghị oghere | Improperly mounted lens; dirty electrical contacts. | Re-mount the lens securely; clean lens and camera contacts. |
7. Nkọwapụta
| Nọmba nlereanya | SAFZ4362 |
| Ogologo Focal | 100-300mm |
| Ụdị oghere | Mbugharị ekwentị |
| Nkwalite dakọtara | Minolta Alpha (A-Mount) |
| Akụkụ ngwaahịa | 10 x 10 x 12 inch (ihe dị ka kwa data ngwaahịa) |
| Ibu Ibu | 1.05 pound |
| Onye nrụpụta | Sigma |
8. Akwụkwọ ikike na nkwado
For information regarding warranty coverage, service, or technical support, please refer to the warranty card included with your product or visit the official Sigma websaịtị. Debe nnata nzụta gị dị ka ihe akaebe nke ịzụrụ maka nkwupụta ikike.
Akụrụngwa dị n'ịntanetị: Maka nkwado ọzọ na ozi ngwaahịa, biko gaa na Sigma Global Websaịtị.





