Using Sequence Generator Pro and Friends by Alex McConahay

Author:Alex McConahay
Language: eng
Format: epub
ISBN: 9783030197193
Publisher: Springer International Publishing

Focuser Equipment and Preliminary Configuration

The Focuser

The focuser is at heart a mechanical device. For efficient astroimaging, the focuser is usually equipped with motors, sensors , and electronics. A shaft is moved by hand or motor, and this moves the tube holding the camera, or the optic itself, forward or back. For astro imaging a motor is better than a hand. Yes, hands are handy. They are generally low cost and don’t require outside power or configuration, and SGP can be used with a hand or manual focuser. However, hands need to be within reach of the focuser knob, are not usually as precise as a motor, cannot be controlled by a computer, and, worst of all, shake the telescope every time they are used.

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