Most definately less than two months. I can't stop tweaking for the perfect picture which of course I'll never acheive but my fingers never listen! My wife's comments are always along the line: do you enjoy watching or tweaking? She just doesn't understand!
With my Dwin HD-700 CRT, if I don't physically touch the projector, I find the convergence will remain stable pretty much indefinitely. But if I am reconnecting a cable or cord and happen to touch the projector a bit, then I can get some convergence drift. So if I leave the projector alone its fair to say I could well go a year or more without needing to touch up convergence.
Fire up the ACON......run to the fridge.......return and watch the movie. Convergence complete! But just like many other people some strange impluse still forces me to tinker. I think the term "If it ain't broken don't try to fix it" just doesn't apply around here.
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