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Yes, 2x and greater is only for corrections.
Most mounts don't track perfectly and will trail sooner or later. An EQ3, well you would be lucky to get 30 seconds without corrections. To stop the trailing you will need a guiding system, a guidescope with a camera and software, a stand alone guider like the Synguider, or a guidescope with illuminated reticle eyepiece and guide manually with your eye.
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