It includes front & Rear Caps, Hood</br>Construction: 6 Groups/ 7 Elements</br>Filter Size: 58mm</br></br>Product Description</br></br>Voigtlander Nokton 50mm f/1 Leica M Mount Lens - Black Specifications Construction6 Groups/ 7 Elements F stop rangef/1-16 Closest Focusing Distance3.0' Filter Size58mm Dimensions (Length x Diameter)57.2mm x 69.6mm Weight15 oz</br><br/>http://www.amazon.com/gp/product/B0030FJK80