The Pl ssl is the ideal all around eyepiece for planets, lunar and deep-sky viewing. Containing five or six elements, this eyepiece will get you impressive deep-sky views at low powers. This is not the eyepiece for lunar or planetary viewing since image sharpness suffers at the edges at higher powers. Today we have Super and Ultra wide eyepieces that incorporate six to eight elements to produce apparent fields of view up to 85 . The ideal eyepiece for viewing galaxies, star fields and other deep sky objects.
Image quality is very high, but the number of elements slightly reduce light transmission.
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