Nikon Prostaff 5 Fieldscope 60 is completely new series of Nikon spotting scopes that replaced old RAIII spotting scopes. Their housing is made essentially lighter from RAIII series as well the new oculars are offering lower dispersion of light and therefore better optical characteristics. Also at this new series of spotting scopes the lenses are coated with special multilayer coatings to enable high resolution and quality image. They are filled with dry nitrogen and sealed with O-rings to assure carefree use even at most unpleasant circumstances like rain and extremely low temperature. Therefore the fear that the inner dewing will occur is unnecessary. They also have the sliding shutter of the objective built in it and possibility to attach the tripod on the main housing. Also for this series the Nikon is offering quite a large range of oculars and equipment for digiscoping.