EXPLORE SCIENTIFIC Teleextender 2x 31.7mm/1.25"

Codice articolo: 0218750

Four-lens Premium-Teleextender with extension factor 2x

Four-lens telecentric teleextender 2x
Multiplying the effective focal length by: 2x
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

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.

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 color or nebula filters