The benefit of using extension tubes is that the distance from the back of the lens to the film surface is longer, which means you can take photographs at shorter distances to the subject. Extension tubes are commonly used for macro photography and sometimes for closeup portraits.
• When using the camera's TTL metering system, no exposure compensation will be required
• The Extension Tube EF 25 II is recommended for lenses with a focal length of 50mm and up.
• Shortens focusing distance of lens
Please note: This lens has been unused and still has original box etc.