Get it by Tuesday December 19th by choosing the expedited option during checkout.
Most accurate way to guide - improved accuracy compared to using a separate guide scope
12.5mm multi-coated prism with aluminized backing for maximum reflectivity and illumination to the auto guider
Fixed-orientation helical focuser for easy, smooth and accurate auto guider focus
48mm clear aperture supports full frame cameras without vignetting
Includes adapters with the correct spacing for DSLR cameras, Nightscape CCD and other popular astroimaging cameras
Imported from USA
The Off-Axis Guider is an essential astroimaging accessory for long focal length telescopes that require the most
accurate guiding possible. The Celestron Off-Axis Guider uses a prism to intercept a small portion of the telescope’s
focal plane (outside the field of view of the main imaging camera) to locate a guide star. Any movement seen by the
guide star will be the exact same movement seen by the imaging camera. Guiding this way will correct for tracking
errors, as well as opto-mechanical errors or flexure. The result: better astroimages with pinpoint round stars.