您要查找的是不是：
- The lens hood is used to cover up the lens. 遮光罩是用来遮盖镜头的。
- The telescoping lens hood is built in. 有一个内置可伸缩的遮光罩。
- Remember to take off the lens hood before you take a photo. 拍照前要记住先取下遮光罩。
- Never forget to put on the lens hood after you use the camera. 每次照相机用完以后，千万不要忘记把遮光罩盖上。
- Having the same focus or foci. Used of a lens. 共焦的有共同焦点的。用于透镜
- Concave on both surfaces;biconcave.Used of a lens. 双面均凹进的；双凹的。用于指透镜
- Convex on both sides;biconvex.Used of a lens. 凸凸的两面部凸的；双凸面的。用来指透镜
- Convex on both sides; biconvex. Used of a lens. 凸凸的两面部凸的；双凸面的。用来指透镜
- A lantern or lamp having such a lens. 有这种镜的灯笼或灯。
- A lens made of optical crown glass. 用冕光学玻璃制成的透镜。
- A lens that focuses the image in a camera. 照相机上对着图像调焦的镜头。
- Light is refracted as it passes through a lens. 当光通过透镜时会折射。
- a lens hood 镜头遮光罩
- As shown in the figure, the device is set up to examine a lens. 图中所示的仪器是为检验透镜安装起来的。
- Together with the lens hood after that a whole new ballgame, contrast, color are pure, and this is due to the interference of light around. 增上遮平罩后颜色不离合座不不同了，差比度调低了，颜色也变清了，这不离是因为边际帮助平源的裁减。
- To increase the apparent size of, especially by means of a lens. 扩大外观上的尺寸,特别是利用透镜。
- Concave on both surfaces; biconcave. Used of a lens. 双面均凹进的；双凹的。用于指透镜
- A lens is an optical system including two refracting surfaces. 一个透镜是包含两个折射面的光学系统。
- He went from being a small-time hood to a mafia kingpin. 他从不成气候的小太保慢慢混到黑手党的头儿。
- Corrected for both chromatic and spherical aberration, as a lens. 复消色差的矫正色相差和球面像差的，如镜头
