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Nikon style bayonet mount for snap-lock mounting to selected lens type
the GOTO system can be easily operated from your own Apple
Robust and precision accuracy: Helical Front-Focus can't slip and does not turn the eyepiece
Turns your NIKON style SLR lens into a Hydrogen Alpha Solar Telescope
Orion SkyWizard
Astrozap Off-Axis Glass Solar Filter 244mm-251mm Accessories Nikon style bayonet mount forAstrozap 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
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