Is the 12x50 size good for birding?

It works for distant or open-country birds, but the narrow field and hand shake make 8x or 10x easier for close, fast-moving birds.

Do the ED lenses make a visible difference?

Yes. ED glass reduces the purple and green fringing that shows on bright edges, which is the main optical step up from Bushnell's standard 12x50 models.

Can I use them with a tripod?

Yes, with a tripod adapter. At 12x a rest noticeably steadies the view and is worth it for long glassing sessions.

Are they waterproof and fogproof?

Yes. The roof-prism body is sealed and nitrogen purged, so it handles rain and temperature swings.

What comes in the box?

Typically the binoculars, a carry case, a neck strap and lens covers. Check the listing for the exact bundle.

How do they compare with 10x42 binoculars?

They reach farther and gather more light, but they are bigger, heavier and harder to hold steady. Choose 10x42 for all-day carry and 12x50 for distance from a fixed position.