Explore Scientific 2" Focal Extender - (x3) Focal Extender The planetary rotation system offers

The planetary rotation system offers precision and homogeneity of coatings ensuring high transmission of pass-band and high optical density off-band

Rear-end filter adapter: M54×0

the Starbook Ten has addressed this problem

SD103SII lens telescope

89 mm (to the long center axis)

Explore Scientific 2" Focal Extender - (x3) Focal Extender The planetary rotation system offersWith 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