|"When I consider your heavens, the work of your fingers, the moon and the stars which You have set in place, what is Man that You are mindful of him?" -- Psalm 8:3,4|
Electronic Focuser (EF)
Astrophotography requires a precise focusing. This can be achieved by using electric focuser - motor driven focuser. Manual focus is not as fine as motorized focusing. Furthermore after manual adjustment of focuser the telescope and mount need some time for damping vibrations.
So I started a new home-made
project - Electric Focuser - together with my very good
friend - Jan Timmermans. He inspired me and helped me to
obtain parts for focuser. So the final product is a
result of our cooperation. Jan prepared very nice Step by Step Progress
Report (application of EF for TAL telescope).
The motor is fixed to aluminium plate by means of blue aluminium belt (with rubber plate). The motor plate is fixed to focuser by means blue aluminium belt (with rubber plate) - around the focuser. The gear wheel is fixed to focuser knob with M4 bolt (a wing nut is used for allowing manual focusing - by loosening it).
The electromechanical parts were ordered from CONRAD Electronics. (the order numbers are Conrad order numbers).
Here are photos of my beta version of electric focuser:
The first test object of EF was Albireo.
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Last Update: 10.12.2001