This lens mount adapter allows the lens to become a Macro lens on Pentax camera body. Therefore,you don't need to buy any Macro lens. Although the lens will fit physically,automatic diaphragm,auto-focusing,or any other functions will not operate correctly with using this adapter. *** Attention: There are no electrical contacts in the Adapter. Exposure and focus have to be adjusted MANUALLY. Aperture control is not available if you use a lens which does not allow you to manually adjust the aperture (Without an aperture ring). Package includes: 1x Macro Reverse Adapter For Pentax.