Telescope Basics • 19
It should be noted that the image orientation will change depending on the viewing
configuration. When using the star diagonal, the image is right-side-up, but reversed
from left-to-right. If inserting the eyepiece into the visual back (i.e., without the star
diagonal), the image is inverted (upside down and reversed from left-to-right). This
holds true for the 6x30 finder as well as the telescope. For correct orientation through
the telescope, which is important primarily for terrestrial observing, use the optional
45° erect image diagonal 1-1/4" (#94112-A).
Image Orientation
Figure 3-3
These simplified drawings of the planet Jupiter illustrate the different image orienta-
tions obtained when using various viewing configurations.
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