At high magnification or with a camera attached to your C8, it’s difficult to hit the exact focus point with the standard button, because you’re moving the main mirror quite roughly with it. This Feather Touch fine-focusing system for the Celestron C8 from Starlight Instruments makes focusing much more relaxed and precise.
The C8 is one of the most commonly used Schmidt-Cassegrains among amateurs, for example as the C8 with AVX GoTo mounting. This version is made for the C8, so make sure you know which model you have.
If you use a Bahtinov mask, it’s immediately much easier to get the middle line of the pattern exactly in the middle. For an 8-inch tube, for example: a Bahtinov mask from 172 to 235 mm.
What you can see with the C8 on planets, you can read in view our article about Mars.
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