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mgb_phys
#2
Jan28-10, 06:38 PM
Sci Advisor
HW Helper
P: 8,955
Yes, the equation tells you at what distance the image will be in focus.
Or more usually in a camera how far to move the lens from the film to make an image of an object at a distance X

Whether you could see the object of course depends on how bright it is, and how sensitive your eyes or the film are