This Adapter Tube for EF Camera EOS Camera Black is exceptionally useful for macro photography. To achieve ideal effect， it is mounted between the camera body and lens to create more distance between the lens and film plane. The greater the length of the tube， the closer the lens can focus. Getting closer has the effect of magnifying your subject. It can be used separately or in any combination to obtain your desired magnification. It is durable and reliable for long-term use. It is excellent for professional macro shooting.                                    Features            By moving the lens further away from the film or sensor in the camera， the lens is forced to focus much closer than normal<br>The greater the length of the extension tube， the closer the lens can focus<br>It is durable and reliable for long-term use<br>This tube ring does not affect image quality， because there is no optics inside<br>Length adjustment will not affect sharpness and saturation<br>                                                            Specifications             Dimensions     ( 2.56 x 2.76 ) / ( 6.5 x 7 )cm (Diameter x L)    <br> Weight     4.41 oz / 125 g    <br> Material     Metal     <br> Color     Black    <br> Compatible with     Canon EOS， EF Lens     <br>                                                             Package Includes            1 xCanon EOSAdapter Tube<br>