Current Price: $189.99
Buy It Now Price: $189.99
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Up
for consideration is

Explore Scientific 68°
34mm Waterproof Eyepiece

 

 

Description

This
is in great condition. We didn't use but a few times.

 

34mm
68° Series Argon-Purged Waterproof Eyepiece

Item
Number

EPWP6834-01

Focal
Length

34mm

Length

100.8mm

Width

69.6mm

Weight

24.1oz;
685g

Barrel
Size

2.00”

Eye
Relief

26.4mm

Field
Stop Diameter:

38.6mm

 

Using advanced computer design,
combinations of low dispersion and high refractive index optical glasses, and
durable multilayer deposition coatings, Explore Scientific 68° 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 68°
apparent field is truly a full-immersion experience. The 68° 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 (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 of heat
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. 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.

 

LOC: Shelf

Includes just the item (s) you see in
the picture.”

 (Unless otherwise stated Below)

INTERNATIONAL BIDDERS NOTE I WILL SHIP USING ONLY GLOBAL
SHIPPING PROGRAM WITH TRACKING. any
customs fees are the responsibility of the buyer, and vary greatly between
countries. item will be shipped with tracking within 1 business day, but delays
through customs and over borders are to be expected and may lengthen the
shipping process, again out of the seller's and buyer's control.

I try to give the best description of
each item. I may not know everything about each item. The pictures are of the
item (unless stated otherwise), get more details from them. If you have any
questions please feel free to ask.

Get it now, happy biding measure

California Residents pay 7625 sales tax

Payment
by PayPal within 2 day

All
items are sold as is

Shipping
prices are for United States only

There may be additional shipping charges for Alaska & Hawaii

PLEASE CHECK OUT THE OTHER ITEMS I HAVE FOR SALE

 

 


Filed under: Eyepieces & Accessories