PENTAX XW EYEPIECES (85°)

The smc PENTAX XW (85°) eyepieces bring an immersive, ultra-wide 85° apparent field of view to your telescope or Pentax spotting scope. Built with high-refraction, low-dispersion lanthanum glass and Pentax's renowned Super Multi-Coating (SMC) on every air-to-glass surface, they produce flare-free, high-contrast images with excellent edge sharpness — even at focal ratios as fast as f/4. A long, fixed 20 mm of eye relief makes them comfortable for eyeglass wearers and for extended observing sessions. These ultra-wide models use a 2 inch barrel. Choose your focal length below.

• Apparent field of view: 85°
• Eye relief: 20 mm (fixed)
• Barrel size: 2 inch
• Glass: High-refraction, low-dispersion lanthanum elements
• Coatings: smc (Super Multi-Coating) on all surfaces
• Fast-scope ready: Optically corrected down to f/4
• Available focal lengths: 16.5 mm and 23 mm