Explore Scientific 52° Series 15mm Waterproof Eyepiece (EPWP5215-01) telescopes you can mount the BT81S-A

you can mount the BT81S-A

and reaching 300 FPS when used with Dusk

/ Double Taper Eye Relief 16

and nebulae

Explore Scientific 52° Series 15mm Waterproof Eyepiece (EPWP5215-01) telescopes you can mount the BT81S-ASolidly 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