How much magnification do I need for my binoculars?
For binoculars that you will use for typical leisure and outdoor activities, you should consider magnifications between 7x and 10x. 7x should be more than sufficient for theater/concert viewing, but you may want 8x – 10x for activities like bird watching or hunting. Unless you are willing to use a tripod, you shouldn't buy binoculars with a magnification over 10x because you won't be able to hold the binoculars steady enough to get a good image. If you are looking to stargaze in the US, you will need a telescope that has a magnification around 200x.