EXPLORE SCIENTIFIC Telextender 3x 31.7mm/1.25″


Four-lens Premium-Teleextender with extension factor 3x

  • Four-lens telecentric teleextender 3x
  • Multiplying the effective focal length by: 3x
  • Fully multicoated design with four lenses
  • Telecentric optical design for excellent sharpness
  • All lens edges blackened for maximum contrast
  • Eyepiece and teleextender barrel size: 1.25″
  • Filter thread for color or nebula filters
Brand: Explore Scientific
Delivery time: 5-10 days
Delivery type: Via Parcel machine or by a Courier
SKU: 0218760
Category: Barlow Lenses
With teleextenders 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 teleextenders incorporate a telecentric optical design that deliveres 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.


  • Suitable for visual observations and astrophotography
  • tripling the effective total focal length of the telescope
  • Four lens telecentric design
  • Fully multicoated
  • Filter thread for color or nebula filters

Technical Data

Extended warranty 10 years
Total length 100 mm
Total width 48 mm
Net weight (without access.) 245 g


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