Explore Scientific 2" - 18 mm Argon Purged 82° Waterproof Eyepiece (Pre-owned)

This is a really gorgeous 2" 18mm Argon Purged 82° Waterproof Eyepiece from Explore Scientific, the eyepiece is in immaculate condition with no marks or wear anywhere on the barrel or glass! Speaking of the glass, the glass on both the front and rear elements is impeccable, nary a scratch or mark on either side. This is an absolutely gorgeous piece to add to your collection! 

The Explore Scientific 2" - 18 mm Argon Purged 82° Waterproof Eyepiece offers several advantages for telescope users, enhancing the overall observing experience:

1. Wide Apparent Field of View (82°): The eyepiece provides a wide 82-degree apparent field of view, allowing observers to enjoy expansive views of the night sky. This wide field is particularly beneficial for observing large celestial objects, such as star clusters and nebulae.

2. Immersive Observing Experience: With its wide field of view, the eyepiece provides a more immersive and panoramic observing experience. Users can feel like they are surrounded by celestial objects, making it easier to appreciate the beauty of the night sky.

3. High-Quality Optics: Explore Scientific is known for producing high-quality optics, and this eyepiece is no exception. The eyepiece is designed to provide sharp, clear, and detailed views of celestial objects, contributing to a superior observing experience.

4. Large 2" Barrel Diameter: The 2-inch barrel diameter allows more light to enter the eyepiece compared to standard 1.25-inch eyepieces. This can be advantageous for capturing more light from faint celestial objects, resulting in brighter and more detailed views.

5. Comfortable Eye Relief: The eyepiece is designed with comfortable eye relief, making it easier for observers to view celestial objects for extended periods without experiencing discomfort or eye strain. This is especially important for eyeglass wearers.

6. Argon Purged and Waterproof: The eyepiece is argon-purged, which helps prevent internal fogging due to moisture. Additionally, it is waterproof, providing durability and protection against the elements. This makes it suitable for use in various weather conditions.

7. Multi-Coated Optics: The optics are often multi-coated to enhance light transmission and reduce reflections, resulting in improved image contrast and color fidelity. This is important for achieving high-quality and true-to-life views of celestial objects.

8. Versatility: The eyepiece's focal length of 18 mm makes it versatile for a range of celestial observations. It can be used for observing planets, deep-sky objects, and a variety of astronomical targets, offering flexibility in the types of observations users can undertake.

9. Quality Construction: Explore Scientific is known for its durable and well-constructed astronomy accessories. The eyepiece is built with quality materials to ensure longevity and reliable performance.

10. Threaded Barrels for Filters: The eyepiece often features threaded barrels that allow users to attach filters. This is useful for enhancing observations by selectively blocking certain wavelengths of light, such as when observing the Moon or specific planetary details.