Eyepiece 4mm + 20mm + Erecting Eyepiece + Barlow Lens 1.25″ OS2

Eyepiece 4mm + 20mm + Erecting Eyepiece + Barlow Lens 1.25
  • This time-proven beginner eyepieces offers good optical performance and an excellent price-performance ratio.
  • Orbinar erecting eyepiece 1,5x for terrestrial viewing
  • The Barlow Lens doubles the magnification of the inserted eyepiece.

Item description Barlow Lens:
This time-proven beginner Barlow Lens offers good optical performance and an excellent price-performance ratio. The Barlow Lens doubles the magnification of the inserted eyepiece
Item description Erecting Eyepiece:
Erecting Eyepiece 1.5x produces an upright and side correct image in the telescope. This is particularly of importance for terrestrial observations, because without it the image would appear upside down. Example: A telescope with a focal length of 1000mm used in combination with a 20mm Plössl-Eyepiece has got a magnification of 50-times (1000mm focal length / PL-20mm = 50). If you add Erecting Eyepiece 1.5x to this you achieve an upright and side correct image with a 75-times magnification (50 x 1.5 = 75).
Item description Eyepieces :
This time-proven beginner eyepieces offers good optical performance and an excellent price-performance ratio. Delivery includes a protective receptacle for secure transportation and storage. Magnification can be calculated by dividing the focal length of your telescope through the focal length of this eyepiece.   

Contents of delivery:
2x Eyepieces 1.25″ (SR4mm + H20mm)
2x Protective eyepiece receptacles
1x Erecting Eyepiece 1.5x EP1 31.7mm (1.25″)
1x Barlow Lense (2x) BA1 31.7mm (1.25″)
4x Protective caps

Lowest Price: £21.99
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