Explore Scientific 68 Degree 16mm Argon-Purged Waterproof

Explore Scientific 68 Degree 16mm Argon-Purged Waterproof Telescope Eyepiece
- Focal Length 16mm
- Length 61.9mm Width 43.2mm Weight 5.5oz; 158g
- Barrel Size 1.25"
- Eye Relief 11.9mm
- Field Stop Diameter 18.2mm
Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 68Â° Series Argon-Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 68Â° apparent field is truly a full-immersion experience. The 68Â° Series eyepieces come with a removeable 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. Protection from the Outdoors - By making the eyepiece body Argon-purged, the waterproof eyepiece 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 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. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Our waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal we test every eyepiece in one meter of water for 30 minutes.
Country USA
Brand Explore Scientific
Manufacturer JOC
Binding Electronics
ItemPartNumber EPWP6816-01
Model EPWP6816-01
Size 16mm
UPCs 962392004359
EANs 0812257010547
ReleaseDate 0000-00-00

Country	USA
Brand	Explore Scientific
Manufacturer	JOC
Binding	Electronics
ItemPartNumber	EPWP6816-01
Model	EPWP6816-01
Size	16mm
UPCs	962392004359
EANs	0812257010547
ReleaseDate	0000-00-00

Explore Scientific 68 Degree 16mm Argon-Purged Waterproof Telescope Eyepiece

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