Explore Scientific 82-Degree Eyepiece Kit with Case – EPWP82-KIT Explore Scientific

Explore Scientific 82-Degree Eyepiece Kit

 

The Explore Scientific 82-Degree Eyepiece Kit includes a 6.7 mm, 11 mm, 18 mm, and 30 mm 82-Degree Argon-Purged Waterproof Eyepieces and a soft-sided case to keep your eyepieces clean and safe. Each eyepiece is packaged individually in Explore Scientific’s iconic Will Tirion star map box, and includes caps for both ends.

 

About Explore Scientific 82-Degree Eyepieces

 

Explore Scientific 82° Series™ eyepieces, with their 82° apparent field of view, immerses you in a very comfortable ultra-wide field that naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that may not have become apparent to you at first glance. Another great benefit of ultra-wide eyepieces is the ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.

 

The Explore 82° Series eyepieces come with a removable and foldable soft silicone rubber eyecup for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope.

 

By making the eyepiece body Argon-purged, the eyepiece’s internal elements will remain as pristine as the day they were assembled. Argon atoms are “ larger” than that of Nitrogen and therefore they are less likely to “leak” or diffuse their way through the seals over the life of the eyepiece. The atomic radius of Argon is larger than Nitrogen by 0.13 angstroms and has a larger atomic volume by 11.2 cubic centimeters/molecule. Argon also has superior inertness vs Nitrogen (i.e. forming few or no chemical compounds with other elements) that prevents adverse reactions with eyepiece components and therefore extends the longevity of the internal components and also prevents chemical reactions with other elemental contaminants that may be introduced through a weakened seal. And finally, because Argon is less conductive than Nitrogen, Argon cools slower thereby buffering the effects of rapid temperature changes of the optics.

 

The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Explore Scientific’s waterproof eyepieces are easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around the edges to be trapped in between elements. To ensure a perfect seal, Explore tests every eyepiece in one meter of water for 30 minutes.

 

6.7 mm Specifications

• Focal Length – 6.7 mm
• Barrel Size – 1.25″
• Eye Relief – 15.7 mm
• Elements – 7 in 4 Groups
• Parfocal – Yes
• Argon-purged and waterproof – Yes
• Weight – 8 oz

 

11 mm Specifications

• Focal Length – 11 mm
• Barrel Size – 1.25″
• Eye Relief – 15.6 mm
• Elements – 7 in 4 Groups
• Parfocal – Yes
• Nitrogen-purged and waterproof – Yes
• Weight – 9.8 oz

 

18 mm Specifications

• Focal Length – 18 mm
• Barrel Size – 2″
• Eye Relief – 13 mm
• Elements – 6 in 4 Groups
• Parfocal – Yes
• Argon-purged and waterproof – Yes
• Weight – 13.7 oz

 

30 mm Specifications

• Focal Length – 30 mm
• Barrel Size – 2″
• Eye Relief – 22 mm
• Elements – 6 in 4 Groups
• Parfocal – Yes
• Argon-purged and waterproof – Yes
• Weight – 35.5 oz

 

All Explore Scientific telescope accessories are covered under their standard U.S.A. One Year Limited Warranty against defects with proof of purchase, but you can extend this limited warranty to five years by simply filling out the product registration and submit it to Explore Scientific within 60 days. This program is also available to the person who receives your gift of an Explore Scientific telescope. You don’t need to give them the purchase receipt, just remind them to fill out the registration and submit it to Explore Scientific and they will take care of the rest.