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Technically, porro prism binoculars are probably a better option to roof prism binoculars. Roof prism binos give the "straight through" appearance, and are usually lighter (and therefore often preferred by birders), but are more difficult (and therefore more expensive) to build to the same quality as porro designed binoculars.
I only mention this, because I noticed that Meade make a supposedly astronomically suited binocular with a roof prism design. They're not cheap, and in my experience not great.
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