The nikon AF-S 24-70mm f/2.8 g and is a professional standard zoom lens produced starting from 2007 . It includes fifteen elements divided into eleven groups in which we find three lenses in glass and , three aspherical lenses and a particular coating nano-crystal which drastically reduces potential and/or any problems relating to unwanted reflections and ghost effect at the time of the shooting of photography and is protected by dust and sand through excellent invoice seals. It is characterized by a high level of brightness and by a SWM engine thanks to which the functioning of the autofocus takes place quickly and silently (is it is possible to focus on manual). Among its strengths we record the total absence of blurs to the edges and corners, just as it happens with the fixed focal length lens, and a focus that requires a minimum distance of about 38 centimeters ; The automatic absent image stabilizer. The lens nikon AF-S 24-70mm f/2.8 g and has a minimum opening of f/22 and a maximum opening equal to f/2.8 , weighs about 900 grams . Recommended for experienced photographers and that seek the highest quality from their digital photos; It is perfectly compatible with the Fullframe and APS-C Nikon SLR.