1. Lebihview
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. Ciri-ciri Utama
- 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. Kandungan Pakej
Upon opening the product box, please ensure all the following items are present:
- Sigma 28-70mm F2.8 DG DN Lens
- Tudung Lensa
- Cap Lensa Depan
- Cap Lensa Belakang
- Sarung Lensa
4. Persediaan
Memasang Lensa pada Kamera Anda
- Pastikan kedua-dua kamera dan lensa dimatikan.
- Tanggalkan penutup lensa belakang dari lensa dan penutup badan dari kamera.
- 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.
Memasang Tudung Lensa
- Align the red dot on the lens hood with the red dot on the front of the lens.
- Tolak hud pada kanta dan putarkannya mengikut arah jam sehingga ia terkunci dengan selamat.
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. Arahan Operasi
Pemilihan Mod Fokus
The lens features a focus mode switch on its barrel. Slide the switch to select between:
- AF (Autofokus): For automatic focusing.
- MF (Fokus Manual): For manual focusing by rotating the focus ring.
Operasi Zum
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.
Butang 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.
Video: Semula terperinciview of the Sigma 28-70mm F2.8 lens, showcasing its build quality, focus speed, and various focal lengths with sample footage.
Video: A photographer discusses the Sigma 28-70mm F2.8 DG DN lens, highlighting its compact size, constant aperture, and image quality with exampfoto-foto itu.
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.
Video: A semulaview 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. Penyelenggaraan
- Membersihkan Lensa: 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.
- Storan: 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.
- Perlindungan: Always use the provided lens hood to protect the front element from accidental bumps and stray light.
7. Penyelesaian masalah
- Kanta tidak dipasang dengan selamat: Ensure the mounting indexes are correctly aligned and rotate until a click is heard. Do not force.
- Autofokus tidak berfungsi: 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. Spesifikasi
| Spesifikasi | Nilai |
|---|---|
| Dimensi Produk | 3.94 x 2.83 x 2.83 inci |
| Berat Barang | 1.04 paun (lebih kurang 470g) |
| Nombor Model Item | 529965 |
| Jenama | Sigma |
| Panjang Fokus | 28-70mm |
| Jenis Kanta | Zum Standard |
| Pemasangan yang Serasi | Sony E |
| Saiz Penapis | 67mm |
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. Waranti dan Sokongan
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.