The saxon 10mm erecting eyepiece with extension tube provides upright, correctly-oriented images for land observations.
This eyepiece can be used on any telescope.
For use on a refractor or catadioptric telescope, ensure the eyepiece is inserted directly into the focuser. No diagonal is required. The extension tube should be used only where focusing is not possible with just the eyepiece.
For use on a reflector telescope, simply insert this eyepiece into the focuser.
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