a telephoto lens
远距照相镜头, 摄远镜头
You may use a zoom or telephoto lens on your camera.
你可以在照相机上安装可变距镜头或摄远镜头。
A telephoto lens is available as an option.
一个远距照相的镜头是可加以利用的选择。
long focus lens
长焦距（望远）镜头
a photographic lens with a short focal length used to take pictures at short ranges.
带有短焦距在小范围内照相的照相机镜头。
Set the camera for a long-distance shot.
调整照相机镜头拍摄远景。
He set the camera for a long-distance shot.
他调整照相机镜头拍摄远景。
If the screen is so far away from the eyepiece that the camera can be placed between.
如果投影屏距目镜很远，照相机可放在两者之间。
Lifting up her camera, she took out a zoom lens and put it on.
她举起照相机，取出一个变焦距镜头换上。
In camera, the lens must be focused on the object to be photographed.
照相机内的镜头必须对准要拍照的物体调节焦距。
the ratio of the focal length to the diameter of a (camera) lens system.
相机镜头直径焦距比。
long distance infrared flash camera
远距红外闪光照相机
twin-lens reflex 120 camera
双镜头反光120照相机
Cameras have lenses at the front.
照相机的前面装有镜头。
three cameras and five lenses;
三架照相机。 五个镜头。
She always photographs well.
她照相总是上镜头。
step and repeat lens
步进重复照相机镜头
four-barrel step and repeat camera
四镜头分步重复照相机