BAADER HYPERION 68° EYEPIECE 17mm OS-IP the Avalon Linear has such

the Avalon Linear has such a low guiding RMS error that it makes astrophotography possible with long focal length optics

The angle of rotation of Earth is measured by UT1

15 + 15 mm Alloy composition

TKP31112 - 2" extension tube 73mm

#0 Photographic Mode: this is the standard mode that can be used for general astrophotography

BAADER HYPERION 68° EYEPIECE 17mm OS-IP the Avalon Linear has suchThe Baader Hyperion 68 17mm Modular eyepiece uses high quality Phantom group coatings for maximum contrast and zero internal reflections. The Hyperion range of multi function eyepieces feature a modular design with the ability to change the focal length via extension rings. Both 1. 25" and 2" barrels are included, with the 1. 25" barrel able to be unscrewed to add fine tuning rings. Because this section contains the first group of lenses, changing the