William Optics SWAN 25-75x83mm Apochromatic Spotting Scope

An 83mm Apochromatic spotting scope, also include a high-power wide-angle 25x-75x ZOOM eyepiece.

With telescope-quality optics, this spotting scope can double as a good astronomy instrument, and will yield amazing views of terrestrial objects free of color aberration.

Swan 83 APO, the latest spotting scope from William Optics with high quality STM coated APO objective; it boasts a high-power zoom eyepiece and waterproofing for all weather condition. This great spotting scope will please amateur birdwatchers and terrestrial and sky observers alike. Highly portable it is recommended for advanced birdwatchers who want the best from their instruments.

Innovative

• Variable magnification (25x to 75x ) zoom eyepiece.
• Twist-up eyecup.
• Good eye relief: 19.5mm(25X)-18mm(75X).
• First 82 degree Ultra Wide Angle Eyepieces on Spotting scope market.

Nitrogen Filled

• Nitrogen filled.
• Rubberized fit and finish and light weight aluminum construction.
• Rotatable 360 deg. on its axis for increased ease of use and comfort from any position.
• Retractable dewshield.

Any Position

• Rotatable 360 deg. on its axis for increased ease of use and comfort from any position.
• Retractable dewshield.

High-quality Lens

• 83 mm high-quality ED objective made with Japanese Ohara glass.
• True apochromatic performance. Bright and sharp to the edges.
• Excellent color rendition for nature viewing.

Rubberized

• Green rubberized surface, ideal for outdoors activities and casual birdwatching.

Swan 83 APO Spotting Scope Specifications

• Objective Lens Die (mm): 83
• Objective type: Doublet, Air Spaced, APO
• Magnifications: 25X-75X
• Coating: Fully multi-coated
• Field of View (degrees): 42°(25X)-66°(75X)
• Field of View: 29.5m/88.5ft(25X) 15.5m/46.5ft(75X)
  (ft@1000yds)   (m@1000m)
• Eye relief (mm): 19.5mm(25X)-18mm(75X)
• Exit pupil (mm): 3.3mm(25X)-1.1mm(75X)
• Near Focus (m/ft.): 7m/21ft
• Length (mm): 560
• Weight w/eyepiece (kg/lbs): 2.770/6.107