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A new focal length joins the Explore Scientific line of inert gas-purged Waterproof Eyepieces with the 3mm 52° Series Eyepiece. A logical companion for the “grab-and-go” ED80mm f/6 Air-Spaced Triplet, this eyepiece produces 160X which will perform very well with good seeing conditions. On the ED152 at f/8, 405X is achieved without the use of a Focal Extender or Barlow for those nights of near perfect seeing, with a very comfortable 15mm of eye relief.
Designed for high-power on-axis observations, the Explore Scientific 3mm 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 an apparent field of view of 52 degrees, these eyepieces offer incredible value.
|Weight||204.1 grams; 7.2 oz.|
|Barrel Size/Type||1.25" O.D. / Double Taper|
|Field Stop Diameter||2.7mm|
|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|