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.
204.1 grams; 7.2 oz.
1.25" O.D. / Double Taper
Field Stop Diameter
EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
Lens Elements/ Groups
6 Elements in 3 Groups; Edge Blackened
Fits Standard 1.25-inch Dia. Thread in Filters (1.125-inches x 42 TPI)
O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes
Removable Flip-Down Style Soft Silicone Rubber
Slide-on Top and Bottom
Optical Glass; Aluminum; Steel; Silicone Rubber
Laser Engraved: Focal Length; Series; Serial Number; Brand
At StellaScopes.com we stand behind every purchase that we make 100%. If for any reason you are unsatisfied with your purchase. Simply send the item back to us unused in it's original packaging within 30 days of it's delivery.
Extensive Manufacturer Warranty
All of our manufacturers offer very generous warranty coverage of the products sold through our store. Based upon which brand is purchased that item is also covered from defects in workmanship and quality.
Explore FirstLight Branded Products: Limited USA One Year Warranty.
Explore Scientific Branded Telescopes: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
Explore Scientific Branded Eyepieces: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
Explore Scientific Branded Non-Electronic Telescope Accessories: Limited* USA One Year Warranty, Extendable to Unlimited Lifetime Warranty
Levenhuk: All Levenhuk telescopes, microscopes, binoculars and other optical products, except for accessories, carry a lifetime warranty against defects in materials and workmanship; all accessories have a 6-month warranty. This warranty does not cover consumable parts, such as bulbs (incandescent, LED, halogen, energy-saving and other types of bulbs), batteries (rechargeable and non-rechargeable), electrical consumables, etc.
Vixen Optics:Every Vixen telescope, astronomical binocular, and mount is warranted by Vixen Optics to be free of defects in materials and workmanship for a period of 5 years from the date of original purchase in the U.S.A. and Canada. Five year warranty covers all non-electrical/mechanical parts. Electrical parts are warranted for 1 year from date of purchase.