Canon EF12 II Extension Tube
The Extension Tube EF 25 is installed between the prime lens and the camera body. It is a simple way to enable close-ups at high magnifications by increasing the distance between the lens and the film plane enabling focusing at closer distances than otherwise possible.
This close-up accessory maintains full electronic coupling between the camera body and lens and can be used with most EF lenses.
Ideal for nature photography with single focal length telephotos.