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Actually, some of the four-reticle ones (like the WO of which I have two) require an Allen key for alignment, but those a very well made, all-metal and hold their pointing accuracy across many observing sessions. The battery in them also lasts forever. I can't count the times I've forgotten to turn them off when packing up, I've never been caught with a flat RDF battery. My only niggle would be that even at the lowest setting they can be a tad bright under very dark skies.
Cheers
Steffen.
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