Coated Binoculars

What are the best binoculars for astronomy? I'm a complete newbie and need some guidance. Thanks!?

As Geoff G said, 10x50 is the 'classic' astronomy binocular. However, I've seen people use everything from 7x35 up to 20x100.

DO NOT get 'zoom' binoculars. The moving elements do not align precisely enough for astronomy.

You will want multi-coated binoculars. Make sure it says that: 'multi-coated'. This means that every optical surface has a coating on it that reduces reflections and increases light transmission. Stay away from the ones that say 'ruby coated'.

Select a pair that uses 'porro prisms' These are the dog-leg style, where the objectives are set farther apart than the eyepieces. These have better light transmission properties than the straight bodied 'roof prism' style.

Look for a pair meant for astronomy. These will have a mount point for an adapter that will let you put them on a tripod.

Good luck!

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