At what distance of watchmaker must hold his lens from the watch
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A watchmaker must hold his lens at less than the focal length from the watch.
veer742003p2g478:
why
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A watchmaker mainly uses a powerful macro lens to view the very small components of a watch.
Due to the macro lens the components are enlarged to the eyes of the watchmaker, which helps a lot for making or repairing a watch.
To perfectly enlarge an object through a macro lens,the object should be in a less distance than the focal length of that macro lens.
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