Explore Scientific 100° Ar Eyepiece 20mm (2")

Oculaire 20mm (2")

New product

Explore Scientific 100° Ar Eyepiece 20mm (2")

2" wide-angle eyepiece with 20 mm focal length and 100° field of view. Waterproof and argon-purged with fully multi-coated 9/6 optical design.

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Available in stock from the supplier. Please contact us for more information.

489.00 CHF tax incl.

-100.00 CHF

589.00 CHF tax incl.

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Explore Scientific 100° Ar Eyepiece 20mm (2")

Description:
The Explore Scientific 100° Ar 20mm eyepiece delivers an incredibly immersive experience with its ultra-wide 100° apparent field of view. It allows deep-sky objects to stay centered longer, offering relaxed and comfortable viewing.

Built with a 9-element / 6-group design, the optics are fully EMD multi-coated to maximize contrast and transmission. The body is sealed to IPX7 standards and purged with dry argon gas, ensuring long-term protection against moisture, fog, and fungal contamination.

The stainless-steel housing ensures robustness and precision. A foldable rubber eyecup allows use with or without glasses. Fits all standard 2" focusers.

Technical specifications:

  • Optical design: 9 elements in 6 groups

  • Apparent field of view: 100°

  • Focal length: 20 mm

  • Barrel diameter: 2" (50.8 mm)

  • Barrel length: 39 mm

  • Optical coating: Fully multi-coated (EMD)

  • Eye relief: not specified

  • Eyecup: rubber, foldable

  • Waterproofing: IPX7, argon-purged

  • Material: stainless steel

  • Color: black

  • Weight: 916 g (without accessories)

  • Warranty: 10 years with registration

Additional information:
Comes with dust caps and presentation box. Extended 10-year warranty upon registration on Explore Scientific Europe website.