Right out of the box, this telescope can do so much. It's really easy to see surface detail on the moon, the stripes and moons of Jupiter, and the rings of Saturn. And there's still room to upgrade, too. It comes with a 20mm and 10mm eyepiece, which are 50 x and 100 x respectively. The highest useful magnification is somewhere around 228x, so getting a Barlow lens is definitely a worthy investment.