Wednesday, March 30, 2016

Collimation Night

For a telescope to work at its best, the optical elements must be precisely aligned. This includes multiple mirrors within the telescopes.  This alignment is called "collimation."  So tonight one of the experts on collimation in our club gave a talk about how the complicated process works, and then we had two different types of telescopes set up indoors, so people could see what a perfectly aligned telescope's image looks like, and how a badly aligned scope's image appeared.  Here one member of the club adjusts the focus knob as he watches the image change.

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