1. find a DC with aperture larger than f 2.8 or f 2.0
2. keep the person little bit distance : 1.5 - 2.0 meter
3. use longer focal length
4. take the photo after 1500hrs , dont take at noon
5. find a DC with less zoom X , larger aperture and larger CCD
dsd
哈哈 那是技巧哦!!