The PROSTAFF 5 Fieldscopes are entry models of Nikon Fieldscopes and successors of the Spotting Scope RA III series. The PROSTAFF 5 Fieldscope main bodies are about 20% lighter than the current RA III spotting scopes.The newly developed zoom eyepiece lens minimises colour aberration at the edge of the field of view, and offers long eye relief for viewing comfort.

Three types of eyepiece lenses with digiscoping compatibility which connect to a wide variety of COOLPIX-series compact digital cameras, by using the FSB-series Digital Camera Bracket.