聚焦系统
宏比 |
1:1 |
固定焦距 |
180 mm |
最大光圈 |
22 |
对角线视角(最小) |
13.7 ° |
最近聚焦距离 |
0.47 m |
光阑叶片数量 |
9 |
组件应用 |
SLR |
焦距调整 |
Auto/Manual |
图像稳定器 |
Y |
APO Macro 180mm F2.8 EX DG OS HSM, f/ Nikon, 86mm, 1640g
<b>Capture Breathtaking Reality</b>
- Categories: Macro OS.
- Typical Photography: Wedding & Events Portrait, Nature & Wildlife Macro.
- Large aperture optically stabilized macro lens.
- FLD glass elements, performance equal to fluorite.
- Carrying case, lens hood, front & rear caps.
The APO Macro Sigma 180mm F2.8 EX DG OS HSM is a high performance telephoto macro lens designed for Full Frame sensors but may also be used with smaller APS-C size sensors with a corresponding effective increase in focal length to about 260mm with most cameras. The 180mm F2.8 has a large aperture to handle any lighting scenario and the macro capabilities allow focusing down to 1:1 magnification ratio at its closest working distance of 18.5 inches. A Hyper Sonic Motor (HSM) ensures quiet, high speed, and accurate autofocusing while an Optical Stabilizer (OS) compensates for camera shake when shooting hand held. The 180mm F2.8 macro also incorporates a floating Internal Focusing system which reduces aberration during shooting working together with three FLD ("F" Low Dispersion) glass elements for superior correction of color aberration. This lens has a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the image and is also compatible with Sigma APO teleconverters.