Image Orientation
The image orientation changes depending on how the eyepiece is inserted into the telescope. When using a star diagonal with refractors, the image is
Newtonian reflectors produce a
Image orientation as seen with the unaided eye & using erecting devices on refractors & Newtonians
Reversed from left to right, as
viewed using a Star Diagonal on a
refractor
Figure
Inverted image, normal with Newtonians & as viewed with eyepiece directly in a refractor
Focusing
To focus your refractor or Newtonian telescope, simply turn the focus knob located directly below the eyepiece holder (see Figures
Note: If you wear corrective lenses (specifically glasses), you may want to remove them when observing with an eyepiece attached to the telescope. However, when using a camera you should always wear corrective lenses to ensure the sharpest possible focus. If you have astigmatism, corrective lenses must be worn at all times.
Aligning the Finderscope
The Star Pointer is the quickest and easiest way to point your telescope exactly at a desired object in the sky. It's like having a laser pointer that you can shine directly onto the night sky. The Star Pointer is a zero magnification pointing tool that uses a coated glass window to superimpose the image of a small red dot onto the night sky. While keeping both eyes open when looking through the Star Pointer, simply move your telescope until the red dot, seen through the Star Pointer, merges with the object as seen with your unaided eye. The red dot is produced by a
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