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Lunt HDC 5,9, and 20mm Ultra-Wide Eyepiece Set

Lunt HDC 5,9, and 20mm Ultra-Wide Eyepiece Set

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Available as a complimentary 5, 9 and 20mm eyepiece set are the Lunt Engineering HDC Ultra-Wides. With 100-110° apparent fields of view, this set offers you an outstanding observing range.

The huge 110° field of view offered by the Lunt Engineering 5mm HDC eyepiece, together with excellent contrast will leave you more than impressed after first light. The excellent engineering and fully multi-coated lens surfaces are suggestive of eyepieces costing much more. 

The Lunt Engineering HDC range of eyepieces are Nitrogen filled and waterproof. Features of the eyepieces are low chromatic aberration and excellent contrast. The lens edges and internal spacers are fully blackened allowing flaring and ghosting on high-contrast objects to be eliminated.The 5mm and 9mm eyepieces feature a 1.25" Nose with optional 2" filter sleeve allowing use in either 1.25" or 2" diagonals. Both size options are threaded for filters and it is possible to use the 2" nose together with a 1.25" filter. The 20mm is 2" only. The rubber eye cups may be removed to reveal an M44.5 x 0.75 thread. This allows the eyepieces to be used for Afocal photography.

General Specifications

5mm, 9mm and 20mm Focal Length

Barrel Size 1.25" / 2" (2" for 20mm only)

Field of View 110°(5mm), 100° (9mm and 20mm) Apparent

Optical Design 9 elements in 6 groups. Fully multi-coated

Eye Relief 15mm (5mm), 13mm (9mm), 15mm (20mm)

Weight 492g (5mm), 462g (9mm), 680g (20mm)



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