6.摄像机的色温滤色片属于

A.自动控制系统                                               B.光学系统  

C.信号处理系统                                               D.伺服系统

7.其他因素不变的情况下，焦距越______，景深越小；光圈孔径越______,景深越小；拍摄距离越______，景深越小。

A.长；大；近                                                  B.短；大；近      

C.长；大；远                                                  D.短；大；远

8.中午前后的阳光的色温一般为______之间。

A.5400～5500K                                                B.2800～3500K

C.4000～4500K                                                D.8000～9000K

9.______能强烈表现被摄物体的运动轨迹和空间关系。

A.平摄                                                             B.俯摄

C.仰摄                                                             D.顶摄

10.别的所有光控手段都不变，光照条件也没改变，光圈系数f16与光圈系数f4的光通量比值为

A.1∶4                                                             B.4∶1

C.1∶16                                                           D.32∶1