Mount adapter ring is particularly designed to meet shutterbugs&acute; different demands toward shooting effect. If you desire to capture wonderful and amazing moments， this Leica R Lens to Nikon Optical Glass Lens Mount Adapter Ring Black will be your regretless choice. It allows you to mount almost any gear in corresponding size. Adopting high-class material， it can provide stable and natural shooting conditions. It is very lightweight without adding much weight for your digital camera. You will be satisfied with it. Never hesitate anymore!                                    Features            It is a Leica R lens to Nikon mount adapter ringIt is easy to install， remove and useIt is durable and reliable for long-term useIt is made of durable brass， aluminum and optical glassA useful thing to achieve optimal shooting effectAn ideal choice for each shutterbug                                                            Specifications             Dimensions     (2.36 x 1.38) " / (6 x 3.5) cm (Diameter x H)    <br> Weight     3.24 oz / 92 g    <br> Material     Brass， Aluminum， Optical Glass    <br> Color     Black    <br> Lenses Compatible with     Leica R Lens    <br> Camera Bodies Compatible with     Nikon      <br>                                                             Package Includes            1 x Optical Glass Lens Mount Adapter Ring