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Explore Scientific 4.5mm 52° Series Waterproof Eyepiece

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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 #: ES5204
Explore Scientific Product #: EPWP5245-01
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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.

Designed for high-power on-axis observations, the Explore Scientific 4.5mm 52° Series Waterproof Eyepiece is fully EMD (Enhanced Multi-Layer Deposition) Coated with edge blackened lenses providing the contrast required for serious high-power observing of planets, close-paired double stars, and bright compact deep sky objects. With a flat apparent field of view of 52 degrees, these eyepieces offer incredible value.

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 EPWP5245–01
Focal Length 4.5mm
Length 83.5mm
Width 43mm
Weight 181.4 grams; 6.4 oz.
Barrel Size/Type 1.25" O.D. / Double Taper
Eye Relief 15mm
Field Stop Diameter 4.1mm
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 4.1mm
Focal Length 4.5mm
Number of optical elements 6
Weight 6.4 oz
Warranty 1 year

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