AstronSCIENTIFIC ROTARION EyepieceWheel, Инструкция по эксплуатации

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3. Viewing objects with ROTARION
To locate objects, it more convenient to use your eyepiece
with a greater number of mm or less magnification. The
less magnified eyepieces have the largest field of view and
therefore it is easier to locate objects with your telescope
than with an eyepiece of greater magnification and less
visual field.
If you have followed these instructions correctly, your
lower power or magnification eyepiece should be placed in
the port [PORT-1] of your ROTARION with a larger number
in mm and greater field of view.
Once the observing object is found, you should focus with
the telescope and center the object (A) on the eyepiece
before changing to the next eyepiece, so that the image of
the object in the next eyepiece is in your field of view.
[PORT-1] Centered NOT OK . [PORT-1] Centered
OK.