About this product
Part Number: 0218750
Explore Scientific premium 1.25" 2x / 3x / 5x Barlow / Tele-Extender an excellent choice for visual observations and astrophotography.
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 tele-centric 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 multi-coating with superior optical design makes the Focal Extenders superior to classic Barlow lenses.
- Four-lens tele-centric tele-extender 2x, 3x or 5x
- Multiplying the effective focal length by: 2x, 3x or 5x
- Fully multicoated design with four lenses
- Tele-centric optical design for excellent sharpness
- All lens edges blackened for maximum contrast
- Eyepiece and teleextender barrel size: 1.25"
- 1.25" Filter thread
|Average Rating (1 Review): |
Wednesday, 7 October 2020 | Jamie
I used this x2 focal extender with my C9.25 last night to image Mars at close approach. What a difference to the basic x2 Barlow that I was using. No significant light loss, or colour dispersion or reflections which I was having previously. Last nights data is the best I've had. I also tried imaging the craters on the moon as a test, and couldn't believe the improvement. Overall I'm very happy with this focal extender.
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