caption: 26  The image formed by the first lens is located as though the second lens were not present  The image of the first lens is treated as the object of the second lens  Then a ray diagram is drawn for the second lens  The image formed by the second lens is the final image of the system  If the image formed by the first lens lies on the back side of the second lens, then the image is treated as a virtual object for the second lens - s will be negative  The overall magnification is the product of the magnification of the separate lenses
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