Explore Scientific 1.25" Focal Extender - (x2) Focal Extender Combination of tubes allows you

Combination of tubes allows you to obtain distances of 5 mm to 67

Sensor size: 17

in fact there are many dedicated Dobsonian telescope users groups

The fast aperture ratio of f/7

Explore Scientific 1.25" Focal Extender - (x2) Focal Extender Combination of tubes allows youWith tele extenders it's 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. These tele extenders incorporate a tele centric optical design that delivers excellent image sharpness over the whole field of view and are premium choices for visual observations and astrophotography. The combination of excellent