1. Rematadoview
The SIGMA 28-70mm F2.8 DG DN | Contemporary lens is designed for full-frame mirrorless cameras, offering outstanding optical performance in a lightweight and compact body. This lens is based on the optical design of the 24-70mm F2.8 DG DN | Art, ensuring high image quality across its zoom range. It provides a versatile focal length for various photographic applications, from wide-angle landscapes to portraits.
2. Características clave
- Internal Focusing: Ensures consistent lens length and stable handling.
- Superb Build Quality: Constructed with high-quality materials for durability.
- Focus Mode Switch: Easily switch between autofocus (AF) and manual focus (MF).
- Nano Porous Coating: Reduces flare and ghosting for clear, high-contrast images.
- Lightweight and Compact Body: Designed for portability and comfortable day-to-day use.
3. Contido do paquete
Upon opening the product box, please ensure all the following items are present:
- Sigma 28-70mm F2.8 DG DN Lens
- Parasol de lente
- Tapón de lente dianteira
- Tapa de lente traseira
- Lente caso
4. Configuración
Colocación da lente na cámara
- Asegúrate de que tanto a cámara como a lente estean apagadas.
- Retire a tapa traseira da lente e a tapa do corpo da cámara.
- Align the mounting index (white dot) on the lens barrel with the mounting index on the camera body.
- Insert the lens into the camera's mount and rotate it clockwise until it clicks into place. Do not force the lens.
Colocación do parasol da lente
- Aliña o punto vermello da tapa da lente co punto vermello da parte frontal da lente.
- Empurre a tapa sobre a lente e xire no sentido das agullas do reloxo ata que quede bloqueada de forma segura.
Image: Sigma 28-70mm F2.8 DG DN lens mounted on a Sony E-mount camera, top view. This image illustrates the lens properly attached to a camera body.
Image: A hand holding a Sony E-mount camera with the Sigma 28-70mm F2.8 DG DN lens attached, demonstrating its compact size when handheld.
5. Instrucións de funcionamento
Selección do modo de enfoque
The lens features a focus mode switch on its barrel. Slide the switch to select between:
- AF (Enfoque automático): For automatic focusing.
- MF (Enfoque manual): For manual focusing by rotating the focus ring.
Operación de zoom
Rotate the zoom ring on the lens barrel to adjust the focal length between 28mm and 70mm. The lens features an internal zoom mechanism, meaning its physical length does not change when zooming.
Botón AFL
The AFL (Autofocus Lock) button can be customized via your camera's menu to perform various functions, such as locking autofocus, activating eye AF, or other programmable actions.
Video: A user demonstrates the physical features of the Sigma 28-70mm F2.8 lens, including the focus mode switch and its attachment to a camera.
Vídeo: Unha reestruturación detalladaview of the Sigma 28-70mm F2.8 lens, showcasing its build quality, focus speed, and various focal lengths with sampo footage.
Video: A photographer discusses the Sigma 28-70mm F2.8 DG DN lens, highlighting its compact size, constant aperture, and image quality with exampas fotos.
Video: A user shares their experience with the Sigma 28-70mm F2.8 lens, emphasizing its versatility for various shooting scenarios and the quality of its bokeh.
Vídeo: Unha review comparing the Sigma 28-70mm F2.8 with another lens, focusing on size, weight, and close-focusing capabilities.
Video: A user discusses the Sigma 28-70mm F2.8 lens, highlighting its features like autofocus and build quality, and its suitability for various photography needs.
Video: A user provides a brief overview of the Sigma 28-70mm F2.8 lens, focusing on its compact design and suitability for Sony E-mount cameras.
Video: An unboxing video of a Lumix S5 II camera, which also features the Sigma 28-70mm F2.8 lens being mounted and discussed in context.
6. Mantemento
- Limpeza da lente: Use a soft, lint-free cloth and a lens cleaning solution specifically designed for optical surfaces. Avoid touching the glass elements directly with your fingers.
- Almacenamento: When not in use, store the lens with both front and rear caps attached in a dry, cool place away from direct sunlight and extreme temperatures.
- Protección: Always use the provided lens hood to protect the front element from accidental bumps and stray light.
7 Solución de problemas
- A lente non está fixada correctamente: Ensure the mounting indexes are correctly aligned and rotate until a click is heard. Do not force.
- O enfoque automático non funciona: Check the focus mode switch on the lens and camera body to ensure it is set to AF. Verify that the camera's autofocus settings are appropriate for your shooting conditions.
- Dust or smudges on images: Clean the front and rear lens elements carefully. If the issue persists, check your camera's sensor for dust.
8. Especificacións
| Especificación | Valor |
|---|---|
| Dimensións do produto | 3.94 x 2.83 x 2.83 polgadas |
| Peso do elemento | 1.04 libras (aprox. 470 g) |
| Número de modelo do artigo | 529965 |
| Marca | Sigma |
| Distancia focal | 28-70 mm |
| Tipo de lente | Zoom estándar |
| Montaxes compatibles | Sony E |
| Tamaño do filtro | 67 mm |
Image: Diagram illustrating the physical dimensions, focal length (28-70mm), aperture (F2.8), weight (470g), minimum focusing distance (19-38cm), maximum magnification (1:3.3), and filter size (67mm) of the Sigma 28-70mm F2.8 DG DN lens.
9. Garantía e soporte
For warranty information and customer support, please refer to the official Sigma website or contact your local authorized Sigma dealer. Keep your proof of purchase for any warranty claims.