Excellent Optical System: Designed primarily for planetary observation and great for deep sky objects too; aluminum material is used to make it last longer; a cost-effective eyepiece; it is also an excellent choice for birthdays and Christmas gifts
Elaborate Detailed Design: Equipped with an rotated eyepiece barrel and a convertible rubber eyecup for preventing stray light entering from the side; The edges of the lenses are blackened and the internal structure is treated to eliminate stray light
Standard 1.25 Inch Barrel and Thread: Compatible with any telescope equipped with 1.25 inch focuser and the 1.25 inch female thread can also be connected with 1.25 inch telescope filter or other 1.25 inch telescope accessories
Wider 58 Degree Field of View: Comfortable eye relief averaging 16 mm across the series and focal lengths is between 2.5 mm to 25 mm; giving maximum detail and definition across the entire 58 degree field of view
Multi-coated Lense Design: Each eyepiece has 5 lens elements in 3 groups; with retaining high transmittance and contrast ratio with least lateral cchromatic aberration and scattering phenomenon; having a wide view
Description
Primarily made for planetary observation, these 1.25" fully multicoated eyepieces give maximum detail and definition across the entire 58 degree field of view. A great value, these eyepieces are exceptional at nearly eliminating lateral color aberration and light scatter often associated with more expensive eyepieces that are better suited for deep space objects.Each eyepiece has 5 lens elements in 3 groups - with the exception of the 20mm eyepiece which has 4 groups.Experienced observers will truly appreciate such generous eye relief at significant magnifications. The exit pupil distance of planetary eyepiece has achieved 16mm. Planetary eyepiece is equipped with an eyepiece barrel which could be rotated for adjustment and a convertible rubber ring for eyes. Planetary eyepiece has an excellent imaging quality well beyond common PL eyepieces. Every surface of lens is coated repeatedly to ensure high contrast ratio. The planetary eyepiece is suitable for observation of the moon, Jupiter, Mars and Saturn.