This Fujinon AE20BF2 2.0X Extender Lens is known as the 'sandwich' extender because it mounts between your camera and the master lens. Back focus adjustment is provided and there is only 1 stop of light loss. The resulting 100% increase in focal length provides the camera operator with greater flexibility and creative control.
Includes back focus adjustment
Mounts between master lens and camera body
2.0x Magnification delivers a 100% increase in focal length with only 1 stop of light loss