This Meike Extension Tube Set consists of two extension tubes that significantly improve the macro capabilities of your current lenses without sacrificing quality. When using the TTL metering system, you do not need to apply exposure compensation. Autofocus also continues to work when using the AF-drive.
A spacer ring is placed between your lens and your camera. This allows you to get closer to the subject and makes the subject appear larger on the photo. A spacer ring is hollow, it does not contain a lens system and therefore does not change the quality of your lens. Intermediate rings work best with telephoto lenses. All automatic functions of your camera are retained.