聚焦系统
| 固定焦距 |
70 mm |
| 最大光圈 |
22 |
| 最近聚焦距离 |
0.257 m |
| 光阑叶片数量 |
9 |
| 组件应用 |
SLR |
70mm F2.8 EX DG Macro for Nikon, 10/9, f22, 62mm, 525g, Black
<b>70mm F2.8 EX DG Macro</b>
- Designed for use with full frame digital SLR cameras. May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 105mm with most cameras.
- Focuses down to 1:1 magnification ratio at its closest working distance of 10.1 inches.
- Extremely compact weighing only 18.5 ounces & measures only 3.7 inches long.
- A lens hood, front & rear lens caps and carrying case are included with the lens.
Sigma’s Macro 70mm F2.8 EX DG is a large aperture medium macro lens suitable for shooting the smaller things in our world that exist virtually unseen. A macro lens is one which will focus on a subject close enough to render it “life-size” on the image plane in your camera. It also has a “flat” field” front lens element so that it can shoot images of flat objects such as artwork or postage stamps and be tack sharp all the way across the image. This Sigma Macro 70mm F2.8 is ideally suited for taking pictures of insects or other small creature where a closer approach to the subject would scare them away. This greater distance also allows the photographer more flexibility in lighting the subject with natural light reflectors. Three SLD (Special Low Dispersion) glass elements provide optimum color correction and sharpness throughout the entire zoom range and Super Multi-layer coating reduces flare & ghosting. A floating internal focus system enables a minimum shooting distance of 7.4 inches enabling ability to shoot with critical sharpness regardless of distance. So don’t miss the tiny insects, flowers of the world or the details in a stamp or coin collection or a piece of embroidery all of which are seldom noticed but offer a fascinating world if you look closely enough. Capture them with the Sigma Macro 70mm F2.8 EX DG.
