Binoculars are listed by size spec, where the first number is magnification and the second is objective lens diameter.

Can a huge 50mm objective lens help the surprisingly compact Zeiss SFL 10x50 stand out as the brightest – and lightest – ...

Our top tried-and-tested picks for birdwatching, stargazing or observing wildlife — find the best models ahead of Black Friday. When you purchase through links on our site, we may earn an affiliate ...