27mm Flat-Field Eyepiece

27mm Flat-Field Eyepiece


  • 27mm Focal Length
  • 1.25" Diameter Barrel
  • 53° Apparent Field of View
  • 0.1% Anti-Reflection Coated Optics
  • Five-Element Eyepiece Configuration
  • Slip-Resistant Textured Surface


Lunt Solar System's five-element 27mm Flat-Field Eyepiece removes the fuzziness and flared appearance that can often appear near the edges of conventional eyepieces to provide pin-sharp images across the entire 53° apparent field of view. The optics are multicoated with proprietary 0.1% anti-reflective coatings that reduce ghosting and glow, and aid in providing a darker background. The eyepiece fits into 1.25" focusers and accessories and features a slip-resistant textured collar for more secure handling

  • Focal Length: 27 mm
  • Field of View: 53 degrees
  • Eye Relief: 18 mm
  • Number of Elements: 5
  • Barrel Size: 1.25″
  • Weight: 0.1 Kg