The Camdiox 62mm F/2.9 prime lens is a 2X macro prime macro lens . It features the unique ability to photograph close-up subjects 18.5cm away at a 2:1 magnification ratio as well as distant subject with infinity focus. The versatility is offered by this manual focus, manual aperture selection lens benefits working with close-up subjects and then quickly switching to full length subjects at distance at distance without the need of extension tubes or other adapters. However some vignetting may occur when focused at infinity. 62mm 2:1 ultra-macro prime lens compatible with destined lens mountThe shortest subject distance of 18.5cm with a 2:1 magnification ratio for greater-than life size macro shooting without the need of extension tubes or adapters. In addition, it is also able to achieve infinity for general shooting applicationTilt function is available for Sony E mount mirrorless camera version SpecificationFocus length: 62mmFNO: 2.9Field angle: 25.3 degreeFrame format: APS-CConstruction: 9 element in 7 groupsBlade of diaphragm: 14Min. aperture: 22Max. aperture: 18.5cmMax. magnification: 2.0 magnificationFocus drive mode: manual focusFilter size: 62mmLens size (length/diameter): approx. 95x70mmBody weight: approx. 809g