Teleconverters
A rear teleconverter sits between a lens and the camera and lengthens the focal length. It has no aperture stop of its own, so it is shown mounted on a host lens: open a converter to pick the lens.
A rear teleconverter sits between a lens and the camera and lengthens the focal length. It has no aperture stop of its own, so it is shown mounted on a host lens: open a converter to pick the lens.