StellaLyra 18mm Ultra Flat Field 1.25'' Eyepiece
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StellaLyra 18mm Ultra Flat Field 1.25'' EyepieceStellaLyra 18mm Ultra Flat Field 1.25'' EyepieceStellaLyra 18mm Ultra Flat Field 1.25'' EyepieceStellaLyra 18mm Ultra Flat Field 1.25'' Eyepiece

StellaLyra 18mm Ultra Flat Field 1.25" Eyepiece

Now: £80.10 (Save:  £8.90) Was:  £89.00✓ 2 year warranty

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About this product

Model:  stellalyra_uf_ep_18mm

StellaLyra 18mm Ultra Flat Field 1.25" Eyepiece

The 18mm StellaLyra Ultra Flat Field eyepiece provides a wide 65-degree FOV and excellent field curvature correction so stars are pin-sharp across the entire visible field, even in fast optical systems. 

All Ultra Flat eyepieces have fully multicoated optics and blackened lens edges for high light transmission and contrast. The colour correction is excellent.

They also have generous eye-relief so are comfortable for use even when wearing spectacles and a foldable rubber eyecup provides comfort and prevents glare from stray light.

FEATURES

  • 1.25" 18mm 65º Ultra Flat Field Eyepiece
  • 8 element / 5 group design
  • 65º Field of View
  • Fully multi-coated optics
  • Blackened lens edges
  • 20mm Eye Relief
  • Foldable rubber eyecups
  • Threaded for 1.25" astronomy filters
  • CNC machined aluminium body
  • Tactile rubber grip
  • Manufactured by United Optics

Eyepiece Field of View Simulator

Specifications

Focal Length 18mm
Nosepiece Size 1.25" / 31.7mm
Apparent Field of View 65º
Physical Field Stop 23.4mm
Virtual Field Stop 21.7mm
Eye Relief 20mm
Optics Fully Multi-Coated, Blackened Lens Edges
Lenses 8 Elements in 5 Groups
Filters Accepts filters with 1.25" Threads (M28.5x0.6)
Accessories Two Lens Caps
Weight 207g

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