Explore Scientific 52° Series Argon Purged Waterproof Eyepiece (3mm)
Coatings: EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces Filter Thread: Fits Standard 1.25 inch Diameter Thread in Filters (1.125
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My honest review of the 52 degree from Explore Scientific. - Page 6 - Eyepieces - Cloudy Nights
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