Yes, our inventory is accurate!
Qualifies for Free Ground Economy Shipping (CONUS Only)
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.
Item Number | EPWP5203–01 |
Focal Length | 3mm |
Length | 90.9mm |
Width | 43mm |
Weight | 204.1 grams; 7.2 oz. |
Barrel Size/Type | 1.25" O.D. / Double Taper |
Eye Relief | 15mm |
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 |