Astroprices

Planetarium 21mm Hyperion Telescope Eyepiece - HYP-21

Baader

From $169.00

5 stores

In stock

The Baader Planetarium 21mm Hyperion is a premium wide-field eyepiece featuring an 8-element/5-group optical design optimized for exceptional sharpness and color fidelity across a 68-degree apparent field of view. With 20mm of comfortable eye relief and proprietary Phantom Group multi-coatings, it delivers superior contrast and light transmission even in fast telescopes, making it ideal for both visual observation and afocal astrophotography. The eyepiece's innovative modular design works in both 1.25" and 2" focusers, with a removable negative lens element that permits variable focal lengths using optional Baader Fine Tuning Rings.

Specifications

Focal length 21 mm
Filter Threads M43 and M54
Barrel Length (1.25 inch) 0.94 in
Maximum Camera Weight Support 6.6 lb
Apparent Field of View 68°
Modular Design
Eye Relief 20 mm
Barrel Length (2 inch) 0.94 in
Focuser Compatibility 1.25 inch and 2 inch
Glass Type High-index water-white glass
Suitable for Binoviewing
Optical design 8 elements in 5 groups
Optical Coatings Phantom Group 7-layer broadband multi-coatings
Removable Negative Lens Element

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