Pentax K-Mount HD DA 70mm f/2.4 70-70mm Fixed Lens for Pentax KAF Cameras (Limited Silver) High-grade multi-layer HD (High Definition) Coating. Equivalent to 105mm in 35mm film format Quick Shift focus system Super Protect coating of the front lens element for effective protection against dirt and finger marks 9 blade diaphragm for stunning bokeh Unique super-compact design in two colors