EXPLORE SCIENTIFIC Telextender 3x 31.7mm/1.25" (Refurbished)

Explore Scientific

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

£76.68*

% £108.00* (29% saved)

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Product number: R13460

Former product no.: R0218760

Note: Our item numbers have been updated. You can continue to search for products using either the previous or the new item number.

EAN: 4007922036182

WEEE-Reg.-Nr.: DE 34323861

Product information "EXPLORE SCIENTIFIC Telextender 3x 31.7mm/1.25" (Refurbished)"

NOTE: This item is a used or returned product. This means: The item may show slight signs of use and the packaging may differ from the original packaging. Please note that refurbished items generally come with a 12-month warranty.

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
tripling the effective total focal length of the telescope
Four lens telecentric design
Fully multicoated
Filter thread for color or nebula filters

Product and safety instructions

Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact:
www.bresser.de

Warning notes

General safety instructions DANGER Risk of eye injuries! Never look directly at the sun or near the sun through this device. There is a risk of blindness! Children should only use the device under supervision. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a risk of suffocation! FIRE HAZARD! Do not expose the device especially the lenses to direct sunlight! The light concentration could cause fires. RISK of material damage! Do not dismantle the device! In case of a defect, please contact your dealer. They will contact the service center and may send the device in for repair. Do not expose the device to temperatures above 60°C!
Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the telescope opening, not at the eyepiece. Otherwise, the concentrated light beam through the optics will immediately destroy the filter foil, leading to severe eye damage, including permanent blindness.
Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight.
Do not expose the device to high temperatures.

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