Canon's extension tube's are exclusively designed for doing very close-up work with Canon EF auto focus lenses, macro lenses in particular. They enable high magnification close-ups of small subjects such as flowers and insects. The tubes have electronic contacts to enable signals between the camera and lens which lets you use the camera's focusing and exposure settings.
Canon's extension tube's are exclusively designed for doing very close-up work with Canon EF auto focus lenses, macro lenses in particular. They enable high magnification close-ups of small subjects such as flowers and insects. The tubes have electronic contacts to enable signals between the camera and lens which lets you use the camera's focusing and exposure settings.