Nikon Prostaff 1000 Laser RangefinderNikon Prostaff 1000 Laser Rangefinder Accuracy, Consistency & Value The PROSTAFF 1000 6x20 Laser Rangefinder puts a solid 1,000 yard maximum ranging capability into your hand, together with compact ergonomics that will fit your pocket. The 6x optical system makes seeingand rangingdeer out to 600 yards a reality, while the Tru Target system allows you to select either First Target or Distant Target Priority. Weather resistant rainproof construction.