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Kellner K6.3mm
These 3-element Kellners offer amateurs an excellent alternative to expensive oculars. The lenses are carefully polished from quality optical glass to ensure sharpness. All five kellners are fully coated with anti-reflection material to maximize light transmission and improve image contrast.
Focus lengths available at 6.3mm,10mm,12.5mm,17mm, 25mm. Apparent Field of View is 50 degrees.
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