1.
Microlens: A term used by some manufacturers to describe their macro lenses.
微摄镜头:一些相机制造商用这个名词描述它的微距镜头。
2.
Macro lens: A lens which focuses on close subjects without the aid of close-up devices such as extension tubes or close-up lenses.
微距镜头:不需收近装置，如外延管，近镜等而把很近距离的物体对焦的镜头。
3.
Most macro lenses can produce an image which is half life size on the film.
多数微距镜头可以产生实物一半大小的影像。
4.
macro teleconverter
增距式微距附加镜﹝使标准镜头变成微距而保留最近封焦距离﹞
5.
a telephoto lens
远距照相镜头, 摄远镜头
6.
long focus lens
长焦距（望远）镜头
7.
manual zoom lens
(镜头)手控可变焦距透镜
8.
Expanding the Microshot Function of Digital Cameras by Using Enlargers;
用放大机镜头拓展数码相机的微距功能
9.
flange focal distance
镜座距，指镜头座与菲林平面的距离
10.
Don't forget to focus the lens.
别忘了调节镜头的焦距。
11.
autofocus zoom lens
自动聚焦变焦距镜头
12.
the ratio of the focal length to the diameter of a (camera) lens system.
相机镜头直径焦距比。
13.
auto iris zoom lens
自动光圈变焦距镜头
14.
This is a long focus lens.
这是个长焦距镜头。
15.
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快速变焦距手术显微镜
16.
zoom stereomicroscope
快速变焦距立体显微镜
17.
Focal length: The distance between the centre of a lens and its principal focus.
焦距:镜头中心与其主焦点的距离。
18.
back focal distance
【光】后焦距﹝指镜头与菲林间的距离﹞