To optimize the performance of the PF-65ED/EDA 65mm ED Spotting Scopes, PENTAX has developed three compact, high-performance XF-series eyepieces, all featuring a bright, high-contrast image, an American-standard 31.7mm sleeve and focal lengths ideal for outdoor viewing and bird watching.

The Pentax XF Zoom Eyepiece for Pentax Spotting scopes features a focal-length range of 6.5mm to 19.5mm for a magnification of 20 to 60 times, with an apparent field of view of 42 to 60 degrees and an eye relief of 11mm to 15mm. The Zoom Pentx XF Eyepiece also offers a user-friendly rubber eyepiece ring to minimize the risk of scratching the observer’s eyeglasses.

Features:

• Apparent field of view of 42 to 60 degrees
• Eye relief of 11mm to 15mm
• A rubber eyepiece ring designed for comfortable viewing even with eyeglasses.

  The PENTAX XF Zoom Eyepiece features a magnification range for the following scopes:

• 20x-60x (PF-65ED)
• 26x-78x (PF-80ED)
• 32.5x-97.5x (PF-100ED)

  Additional Specifications:

• Real Field of View: 2.1 - 1 degrees
• Apparent Field of View: 42-60 degrees
• Angle of View: 2.1 - 1
• Relative Brightness: 10.2 - 1.2
• Eyepiece Size: 3.5" x 2.0"
• Lens & Outside Diameter: 144 x 69mm

  What's in The Box:

• XF Zoom 16.5 - 19.5mm (1-1/4" dia.) Eyepiece
• Lens Cap
• Tube Cap