Explore Scientific 52° Series 15mm Waterproof Eyepiece (EPWP5215-01) telescopes The optical quality and spot

The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range—or even that of a much more expensive instrument

and their long eye-relief counterparts helped reduce eye injury from recoil

7mm Coatings EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces Lens Elements/ Groups 6 Elements in 3 Groups

you can mount the BT81S-A

and nebulae

Explore Scientific 52° Series 15mm Waterproof Eyepiece (EPWP5215-01) telescopes The optical quality and spotSolidly in the mid magnification range for most amateur telescopes, the 15mm is a true workhorse for visual observers. If you love deep sky observing, eyepieces in this focal length range not only give healthy increases in magnification, but the contrast enhancement of giving a darker background sky can make all the difference of how galaxies and nebulae appear under suburban skies. Explore Scientific Waterproof Eyepieces Comfort, Quality, Value. The