聚焦系统
| 最近聚焦距离 |
1.5 m |
| 光阑叶片数量 |
9 |
| 对角线视角（最大） |
34.3 ° |
| 最小光圈 |
4 |
| 最大光圈 |
22 |
Lens 4,0-5,6/70-300 DG OS SIGMA/AF
Telephoto Zoom Lens 70-300mm f/4-5.6 DG OS
High ratio zoom lens housed in a compact construction and incorporating Sigma’s original OS (Optical Stabiliser) function.
This telephoto zoom lens incorporates Sigma’s original OS function and is housed in a compact construction. The OS function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. The SLD (Special Low Dispersion) glass element provides excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the focal range. This lens has a minimum focusing distance of 150cm (59.1”) throughout the entire zoom range and a maximum magnification ratio of 1:3.9, making it ideal for close-up photography.
SIGMA’s own unique OS technology
This lens is equipped with Sigma’s own unique OS (Optical Stabiliser) function. This system offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. It makes telephoto shooting easy for many types of photography such as sport and nature. For Sony and Pentax mount, the built-in OS function of this lens can be used even if the camera body is equipped with an anti-shake function. As compensation for camera shake is visible in the view finder, the photographer can easily check for accurate focus and ensure there is no subject movement.
Superior image quality
The SLD (Special Low Dispersion) glass element provides excellent correction for all type of aberrations.
Compact and lightweight lens design
The lens has an overall length of 126mm (5.0”), maximum diameter of 76.5mm (3.0”) and weight of just 610g/21.5oz. Its compact construction makes it convenient for travel and hand held telephoto photography.
Super Multi Layer Coating
The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images throughout the focal range.
Rounded diaphragm
This lens has a rounded 9 blade diaphragm which creates an attractive blur to the out of focus areas.
Minimum focusing distance of 150cm (59.1inch) at all focal lengths
This lens has a minimum focusing distance of 150cm (59.1”) throughout the entire zoom range and a maximum magnification ratio of 1:3.9, making it ideal for close-up photography.
Large-sized lens hood
The lens is supplied with a large-sized, bayonet type lens hood to block out extraneous light and reduce internal reflections.
