PROSTAFF P3 8x42/10x42


Feature Icons

  • Roof (Dach) Prism Type
  • CF (Central Focusing)
  • Full Multilayer Coating
  • Wide Field of View*
  • Long Eye Relief
  • Rubber Coating
  • Waterproof
  • *10x42 models only

Application Icons

  • Birdwatching, nature watching
  • Outdoors, camping, hiking
  • Spectator sports
  • Marine sports, fishing

Key Features

  • Wide apparent field of view (62.9° for 10x42)
  • High-reflectivity silver-alloy mirror coating applied on the mirror surfaces of the prisms for a bright and clear view
  • Multilayer-coated lenses for bright images
  • Long eye relief design ensures a clear field of view, even for eyeglass wearers
  • Lead- and arsenic-free glass is used for all lenses and prisms
  • Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint
  • Waterproof (up to 1m/3.3 ft. for 10 minutes) and fog-free with O-ring seals and nitrogen gas
  • Rubber armouring for shock resistance and a firm, comfortable grip
  • Lightweight body uses fibreglass-reinforced polycarbonate resin


Swipe horizontally to view full table.

Magnification (x) 8 10
Objective diameter (mm) 42 42
Angular field of view (Real/degrees) 7.2 7.0
Angular field of view (Apparent/degrees) 53.4 62.9
Field of view at 1,000m/yd. (m/ft) 126/377 122/367
Exit pupil (mm) 5.3 4.2
Relative brightness 28.1 17.6
Eye relief (mm) 20.2 15.7
Close focusing distance (m/ft) 3.0/9.8 3.0/9.8
Length (mm/in.) 152/6.0 150/5.9
Width (mm/in.) 130/5.1 130/5.1
Depth (mm/in.) 54/2.1 54/2.1
Weight (g/oz.) 575/20.3 585/20.6
Interpupillary distance adjustment (mm/in.) 56-72/2.2-2.8 56-72/2.2-2.8
Type Roof Roof
  1. Note: Apparent field of view is calculated based on the ISO14132-1:2002 standard. For details, click here.