Orthoscopic

Ernst Abbe invented the orthoscopic eyepiece in 1880, and it has become a favorite of amateur astronomers ever since.  Its field lens consists of a cemented triplet matched to a single plano-convex eye lens.  Orthos are close to perfect eyepieces that have excellent eye relief, nearly non-existent chromatic or spherical aberration, have a fairly flat, wide field of view (40 to 50 degrees), and have little internal reflection.  Ortho eyepieces remain one of the best for nearly all amateur telescopes. (From http://www.astro-tom.com/telescopes/eyepieces.htm)



Product Image Item Name- Price
Baader Classic Ortho 6mm (HT multicoated)

Baader Classic Ortho 6mm (HT multicoated)

Baader Classic Ortho 6mm (HT multicoated) - incl folding side hood Classic Ortho eyepieces, HT-MC-tempered, plug diameter 1 ¼ " parfocal ...
R1,175.00

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Baader Planetarium 1.25" 12.5mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 12.5mm Genuine Orthoscopic Eyepiece

Baarder Planetarium 1.25" 12.5mm Orthoscopic eyepiece  Orthoscopic eyepieces offer an excellent on-axis image sharpness.  Warmly recommended for...
R1,325.00

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Baader Planetarium 1.25" 18mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 18mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25"18mm Orthoscopic eyepiece Orthoscopic eyepieces offer an excellent on-axis image sharpness.  Warmly recommended for...
R1,325.00

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Baader Planetarium 1.25" 5mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 5mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25"5mm Orthoscopic eyepiece. Orthoscopic eyepieces offer an excellent on-axis image sharpness.  Warmly recommended for...
R1,325.00

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Baader Planetarium 1.25" 6mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 6mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 6mm Orthoscopic eyepiece. Orthoscopic eyepieces offer an excellent on-axis image sharpness.  Warmly recommended for...
R1,325.00

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Baader Planetarium 1.25" 7mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 7mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25"Orthoscopic 7mm eyepiece. Orthoscopic eyepieces offer an excellent on-axis image sharpness.  Warmly recommended for...
R1,325.00

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Baader Planetarium 1.25" 9mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25" 9mm Genuine Orthoscopic Eyepiece

Baader Planetarium 1.25"9mm Orthoscopic eyepiece. Orthoscopic eyepieces offer an excellent on-axis image sharpness.  Warmly recommended for...
R1,325.00

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