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Home Accessories Barlow Lenses Barlows 1.25 Inch Explore Scientific 2x Barlow - Focal Extender
With tele-extenders it is possible to extend the effective focal length of a telescope system, resulting in higher magnification for the observation of the moon, the planets or small Deep-Sky objects with the same eyepieces. So you can use the advantages of eyepieces with longer focal length - such as the bigger eye distance and the more relaxed observing comfort - at high magnifications also.
These tele-extenders incorporate a telecentric optical design that delivers a excellent image sharpness over the whole field of view and are premium choices for visual observations and astrophotography. The combination of excellent fully multicoating with superior optical design makes the Focal Extenders superior to classic Barlow lenses.Features: Suitable for visual observations and astrophotography Doubling the effective total focal length of the telescope Four lens telecentric design Fully multicoated Filter thread for colour or nebula filters