Increase the power of your telescope to create exceptionally clear images with high contrast and light transmission. To determine how much power this will add to your telescope, simply divide the focal length by the mm length of the eyepiece. For instance, a telescope with a 400mm focal length used with this 17.5mm eyepiece will produce approximately twenty-three power (23x) of magnification. When you add the Barlow, you'll get approximately forty-six power (46x) of magnification.
Includes 17.5mm MA eyepiece (1.25" Format) and #126 2x Barlow Lens