Pentax SMC Zoom 6.5mm - 19.5mm XF for 65 Spotting Scopes

Eyepiece SMC Pentax XF Zoom

Designed for use with the PENTAX PF-65ED and PF-65EDA spotting scopes, the smc PENTAX XF8.5, XF12 and XF Zoom Eyepiece 6.5mm-19.5mm feature multi-coated optical elements, an American-standard 31.7mm (1.25 inch) sleeve and focal lengths ideal for outdoor viewing and bird watching.

The XF8.5 and XF12 are standard unifocal eyepieces, offering a focal length of 8.5mm and 12mm and a magnification of 46 and 32.5 times, respectively, with a 60-degree apparent field of view and a long 18mm eye relief. They also feature an extendible eyepiece ring with four click-stop positions.

The XF Zoom Eyepiece 6.5mm-19.5mm 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. It also offers a user-friendly rubber eyepiece ring that never becomes too cold to touch while minimizing the risk of scratching the observers eyeglasses.

These eyepieces also come with a filter-mounting screw and an adapter-mounting screw.

Specifications

• Lens Structure - 6 elements in 4 groups
  
• Attachment Diameter - 31.7mm (1.25 inches)
  
• Length & External Diameter - 88 x 50mm 3.5 x 2.0 inches
  
• Weight - 240g (8.5 oz.)
  
• Screw Diameter for dapter - M43 =0.75
  
• Magnification (in Pentax 65 Spotting Scope) - 20 x - 60 x
  
• Real Field of View - 2.1ﾺ - 1ﾺ
  
• Apparent Field of View - 42ﾺ - 60ﾺ
  
• Field of View at 1000m (at 1000 yard) - 37m - 17 m (117 - 51 feet)
  
• Exit Pupil - 3.2 - 1.1mm
  
• Eye Relief - 11-15mm
  
• Relative Brightness - 10.2 - 1.2