Solidly in the mid-magnification range for most amateur telescopes, the 15mm is a true workhorse for visual observers, and if you love deep sky observing the 15mm Explore Scientific 52° eyepiece is the right choice.
The 52°-series eyepiece features a standard 1.25" barrel to make it compatible with the most popular size drawtubes and accessories.
EMD anti-reflective multi-coatings ensure bright, high-contrast images with true color transmission across the entire wide field of view.
Great for viewing celestial objects by using averted vision
The fold-down rubber eyecup prevents stray light from leaking into the eye, further boosting contrast.
The eyepiece is internally sealed and purged with inert, dry argon gas, which maximizes the life of its internal coatings.
The eyepiece is tested by submerging it down to 1 meter of water for 30 minutes.
Fully multi-coated and edge-blackened to produce maximum contrast.
206g; 7.3 oz.
1.25" (31.7mm) / Tapered barrel
Field Stop Diameter
EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
Lens Elements/ Groups
6 Elements in 3 Groups
Standard 1.25" Filter Thread (M28.5 x 0.6)
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