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12mm - BST Explorer Starguider ED Eyepiece

12mm - BST Explorer Starguider ED Eyepiece

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in In stock (14)
0.45 kg
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including VAT 20.00 % ( £7.42 )

BST Explorer - Starguider Super Planetary ED Eyepiece  

Two elements out of the 6 optical elements are made of ED (Extra-low Dispersion) glass elements to provide excellent sharpness edge-to-edge, low level of chromatic aberration and very well managed astigmatism, making this eyepiece a real competitor to much more expensive eyepieces.

These extremely sharp 60 ° eyepieces have a 16-20 mm eye relief. The contrast is enormous; one can compare them with other planetary eyepieces such as orthos. At the same time these give us larger field of view and more relaxed look for money than a conventional Ortho.

This is the Rolls-Royce version of our range of eyepieces sold under "the Planetary"

- 20mm eye relief
- Uniformly 60 degree field of view
- True flat field performance
- 5 or 6 lenses in 4 groups
- All lens surfaces are multi-coated  (fully multi coating)
- Rubberised body
- Retractable eyecups
- weight: appr. 170g

Distortion stays low even with bright (around f/5) telescopes.

These eyepiece are being sold under various brand names like BST Explorer, BST Starguider, Olivon, Astrotech Paradigm

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GSO 2.5x Achromatic 3-Element Barlow ( 31.7mm, 1.25 )
8mm - BST Explorer Starguider ED Eyepiece
5mm - BST Explorer Starguider ED Eyepiece
25mm - BST Explorer Starguider ED Eyepiece
365Astronomy 1.25" Deluxe 3-Element 2x SHORT Apochromatic Barlow
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