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Explore Scientific 6.5mm 52° Series Waterproof Eyepiece

Regular Price: $79.99

Special Price $69.99

Availability: More on the way

Looking for something out of the ordinary for your next eyepiece?  The Explore Scientific 52° series is a strong contender for necessary addition to your eyepiece collection.

Our Product #: ES5206
Explore Scientific Product #: EPWP5265-01
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Product Description

Looking for something out of the ordinary for your next eyepiece?  The Explore Scientific 52° series is a strong contender for necessary addition to your eyepiece collection.  It's long 15mm of  eye relief makes it a joy to put in your scope night after night.

Mid-range high power eyepieces like the 6.5mm are instrumental when transitioning through magnifications to observe an object until it is best seen. There are several aspects that have to come together when observing at high powers: good-to-perfect atmospheric seeing conditions; telescope optics that are collimated; a telescope that is acclimated to the ambient temperature; brightness and size of the object being observed are just a few aspects to consider. The observing challenges are high, but the rewards of observing at high power with razor sharp views are unforgettable.

While some might question the need for Argon-Purged waterproof eyepieces, it is a nice concept knowing the inside of your eyepiece will be just as perfect as the day it left the assembly line.  No need to worry about dust, or cleaning solution, finding its way inside the elements.  These eyepieces are designed to be used night after night giving you complete peace of mind about their performance.

Item Number EPWP5265–01
Focal Length 6.5mm
Length 103.5mm
Width 43mm
Weight 226.8 grams; 8 oz.
Barrel Size/Type 1.25" O.D. / Double Taper
Eye Relief 15.9mm
Field Stop Diameter 5.9mm
Coatings EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
Lens Elements/ Groups 6 Elements in 3 Groups; Edge Blackened
Filter Thread Fits Standard 1.25-inch Dia. Thread in Filters (1.125-inches x 42 TPI)
Waterproof O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes
Eyecup Removable Flip-Down Style Soft Silicone Rubber
Lens Caps Slide-on Top and Bottom
Materials Optical Glass; Aluminum; Steel; Silicone Rubber
Markings Laser Engraved: Focal Length; Series; Serial Number; Brand

Tech Details

Barrel Size 1.25"
Eye Relief 15mm
Field of view 52°
Field Stop 5.9mm
Focal Length 6.5mm
Number of optical elements 6
Weight 8 oz
Warranty 1 year

Reviews

Review by:
I really like the 6.5 for planets and the moon with some star splitting as well for a good price. In a long f- ratio its a high power piece medium power in in fast f-ratio scopes . A good all around eyepiece. (Posted on 10/25/2019)
Review by:
A very nice eyepiece for the price. Well constructed. Sharp bright views across the field - all the way up to the field stop. Very eyeglass friendly which is plus since I wear glasses while observing. I think ES hit a nice run with this series of eyepieces. I like this one in my C8 and it also works well in my short fast fracs. I think others will like the 6.5mm in the ES 52° line up also. (Posted on 9/16/2019)
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