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Matt
I will make something a bit clearer. A laser has its place. Its best use is as a final tweak and to confirm collimation before sessions. I recollimate from scratch anytime I make major adjustmenst to my setup. For example cleaning the mirrors, a new focuser, that sort of thing. I will check the setup everyone month or 2 using the Cheshire, but i raely needs more than a little tweaking.
Each session I check my collimation at the start with the laser, and if it a long session every couple of hours after that. The sort of movements that may happen in that timeframe are the movements that a laser with quickly and accurately pick up.
Malcolm
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