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The SW electric focuser works fine, and comes with fittings for
their refractors and reflectors. The early ones like mine used to drain the
battery quickly, even when switched off, so it took me 20mins to put an
on/off switch on the front of the control box, and I also use a rechargable
9v battery, although the battery lasts for weeks of use anyway. They are
great value, but if you're not much of a tinkerer, I would check with the retailer whether this problem has been fixed. Wouldn't be without mine.
cheers raymo
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