Astrozap Off-Axis Glass Solar Filter 244mm-251mm Accessories Robust and precision accuracy: Helical

Robust and precision accuracy: Helical Front-Focus can't slip and does not turn the eyepiece

Finding and holding that perfect crisp focus is almost effortless with Explore Scientific’s Crayford Style Focuser

(by use of Carbon Fiber

Orion SkyWizard

the GOTO system can be easily operated from your own Apple

Astrozap Off-Axis Glass Solar Filter 244mm-251mm Accessories Robust and precision accuracy: HelicalAstrozap Off Axis Glass Solar Filter These are safe off axis solar telescope filters. An off axis solar filter blocks light into the telescope by only allowing light through a small portion of glass that is off center. By reducing the aperture the image is not darker but the visibility of daytime atmospheric turbulence is reduced. This premium off axis solar filter has an aluminum cell that is secured and centered to the tube end of the telescope with