Features:_x000D_ Pentax K Mount, for all Pentax K DSLR & Pentax K SLR_x000D_ It moves the lens farther from the film or digital sensor. The farther away the lens is, the closer the focus, the greater the magnification._x000D_ This extension tube does not affect image quality as there is no optics inside._x000D_ In comparison, a close up filters are often blamed for degrading image quality._x000D_ Brand new, never used;_x000D_ Made of metal (not plastic);_x000D_ color : black_x000D_ Adjustable Length_x000D_ _x000D_ This extension tube consists of 5 parts:_x000D_ 1. Camera Body Mount Adapter_x000D_ 2. Lens Mount Adapter_x000D_ 3. 9mm tube (Tube 1)_x000D_ 4. 16mm tube (Tube 2)_x000D_ 5. 30mm tube (Tube 3)_x000D_ _x000D_ Remarks:_x000D_ There are no electrical contacts in the extension tubes. Exposure has to be adjusted manually._x000D_ Aperture control is not available if you use a lens which does not allow you to manually adjust the aperture (without an aperture ring)._x000D_ Macro extension tube is wonderful substitution to expensive macro lenses. It maintains original optical while transform the lens into a macro lens. It is far more desired then the add-on close-up lenses, which will alter the optical quality. The extension tube will work with all Pentax K cameras, digital or film,_x000D_ _x000D_ Compatible Digital Cameras:_x000D_ For All Pentax PK mount Camera_x000D_ (such as: Pentax K-1 II K-3 II K-S2 K-S1 K-3 K-50 K-5 II K-5 IIs K-30 K-01 K-5 K-r K-x K-7 K-m K20D K200D K10D K100D Super)_x000D_ _x000D_ Compatibile with:_x000D_ Pentax K DSLR & SLR_x000D_ Life size image is guaranteed with this set up. See details specification at the table below. Specs are based on 50mm f1.4 lens. _x000D_ _x000D_ _x000D_ Package includes:_x000D_ Macro Extension Tube Set For Pentax K x1 _x000D_window.adminAccountId=254075701;_x000D_