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Just in time for Amazon Prime Day on July 8-11, we've rounded up the best compact binoculars, giving you great optics that fit in your pocket.

If binoculars are the flip phone of sightseeing, this handheld telescope is the iPhone. One eye, one hand, and miles of crystal-clear viewing packed into a pocket-sized gadget.

Lightweight Waterproof The Celestron Nature DX 8x42mm binoculars weigh just 1.39 pounds (626 grams) and are small enough to go in an oversized pocket, making them very easy to carry on a long walk.

Binoculars advice guides Binocular reviews from top brands including Nikon, Olympus, Bushnell and Pentax. We test compact and regular pairs so you can find the best binoculars to buy.

Tuesday Telescope: Taking a look at the next generation of telescopes A large moon and an extremely large telescope.