聚焦放大镜 focusing magnifier 装在双镜头反光相机的聚焦罩上的放大镜。便于复印或显微镜摄影当时需要精确对焦。供单镜头反光相机使用时，装在目镜上使用。
我确定你听过太阳和放大镜类比与聚焦有关这里我想再说一遍。如果一次做很多事情那什么事都完不成。
I'm sure you've heard of the sun and magnifying glass analogy pertaining to focus but I'm going to say it again.
可以说，集群已采取行动，像一个巨大的放大镜，或重力透镜，在太空-聚焦，放大和歪曲的形象银河。
One might say that the cluster has acted like a giant magnifying glass, or gravitational lens, in space - focusing, magnifying and distorting the images of the galaxy.
我能以放大镜聚焦一束太阳光那样的强度来聚精会神。
I can concentrate with the intensity of a beam of sunshine focused through a magnifying glass [n].
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