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Sorry for the confusion (but that's the way it is with equipment). It's the UO 2" I was referring to. I would not bother with a laser collimator, unless it's one of the specialised units. I have what Orion sell as their "Deluxe" laser, but I'd say it's for quick rough checks only. Long Cheshire/sighttube or whatever they are called (long tube pinholes one end cross-hairs the other, 45 degree reflective surface in between) is my collimation tool of choice. The "autocollimator" tool might be worth checking out though. I saw it in action once and was very impressed.
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