Patent ID: 7843646

Claim:
A switchable magnification lens, coupled to a zoom lens of a camera through an adaptor and used to vary the magnification of an image to be captured by the camera, the switchable magnification lens comprising: an outer barrel connected to the adaptor; and a switchable magnification unit detachably arranged in the outer barrel and optically connected to the zoom lens, the switchable magnification unit comprising a first end and a second end optically connected to the first end, wherein the image is magnified while passing through the switchable magnification unit from the first end to the second end and the image is shrunk while passing through the switchable magnification unit from the second end to the first end, wherein the switchable magnification unit is able to change its orientation with respect to the outer barrel, the image is magnified while the first end is away from the camera and the second end is toward the camera, the image is shrunk while the first end is toward the camera and the second end is away from the camera.