Yosoo Health Gear Auto Focus Macro Lens Extension Tube Set AF Macro Extension Tube Ring 13mm, 21mm, 31mm for EOS EF EF-S Series Mount Lenses DSLR Camera 5D 7D 500D 600D 700D

Features: Adopts high quality plastic material, lightweight, sturdy and durable 3 rings make 7 different combinations, which extends the lens focal length for close-up shot, and won't alter the optical quality to ensure there is no glare in image Provides images with better quality than close-up filter, a good substitution to expensive macro lenses for macro photographyElectronic contacts keep the light metering and auto focusing function of cameraFits tightly onto camera EF mountsGood accessory for photography lovers Specification: Material: Plastic Color: Black Mount: EF Lens Ring Type: 13mm & 21mm & 31mm Magnification: 0.24 - 1.47 times Focusing Range: 4.2 - 21cm / 1.65 - 8.26inch Manual Focusing Length Range: 0.53 - 5cm / 0.12 - 1.97inch Suitable for cameras with EF mount Weight: Approx. 145g Package List: 1 x Lens Adapter Rings Set 2 x Lens Caps 1 x Storage Bag