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Tele Vue
Tele Vue Nagler Type-5 16mm 1.25" Eyepiece 82°
A 16mm focal-length eyepiece with an 82° apparent field and 10mm eye relief for immersive, comfortable viewing
- Immersive panoramic views with 82° apparent field
- Edge-to-edge sharpness from 6-element optical design
- Comfortable 10mm eye relief for eyeglass wearers
- Brighter celestial images through high-transmission lens coatings
- Parfocal focus retention when changing magnifications
Immersive 82° Field of View
The Tele Vue Nagler Type-5 16mm eyepiece delivers an 82° apparent field of view for immersive, panoramic astronomical observation. Its 1.25-inch barrel fits standard focusers and the 16mm focal length provides versatile magnification for deep-sky and planetary viewing. The advanced 6-element lens design ensures edge-to-edge sharpness and high contrast across the entire field. This parfocal eyepiece maintains focus when swapped with other Nagler Type-5 models.
Optical Performance and Eye Comfort
High-quality lens coatings maximize light transmission for bright, vivid images of celestial objects. Blackened lens edges and anti-reflection threads further enhance contrast by suppressing internal scatter. A comfortable 10mm eye relief allows extended viewing sessions without eye strain, even while wearing eyeglasses. Every unit undergoes 100% full-field visual inspection on flat-field test instruments to verify performance.
Build Quality and Daily Use
The parfocal design simplifies magnification changes during observing sessions by eliminating the need to refocus. Its 1.25-inch diameter ensures broad compatibility with common telescope focusers and diagonals. Durable construction with precise mechanical tolerances withstands regular field use and temperature shifts. The eyepiece is suited for astronomers who prioritize wide-field immersion over maximum eye relief or compact form factor.
Highlights
- Immersive panoramic views with 82° apparent field
- Edge-to-edge sharpness from 6-element optical design
- Comfortable 10mm eye relief for eyeglass wearers
- Brighter celestial images through high-transmission lens coatings
- Parfocal focus retention when changing magnifications
Specifications
No published specifications for this item yet.
Questions about this item
How do I install the 1.25" Tele Vue Nagler Type-5 16mm eyepiece and what step is often missed?
Insert the 1.25 inch barrel into the focuser drawtube and tighten the locking screw securely; the step often missed is checking that the parfocal design keeps focus when swapping eyepieces without refocusing.
What maintenance will the 6-element Nagler Type-5 16mm eyepiece need over time?
The blackened lens edges and anti-reflection threads require only occasional gentle cleaning with optical fluid and a lint-free cloth; internal elements are sealed and need no user servicing.
What limit appears first during long observing sessions with the 82° field and 10mm eye relief?
The 10mm eye relief can feel tight for eyeglass wearers during extended viewing, making it the first comfort limit encountered before optical performance degrades.
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