Congratulations and welcome to astronomy. Perhaps you bought a new telescope and are wondering what to buy for it in the way of accessories, Or maybe you have an older space telescope in need of telescope eyepieces. Eyepieces are the most important accessory for a telescope. Why? Inexpensive telescopes are supplied with low quality eyepieces. Upgrading to better quality eyepieces is the easiest way to improve performance. Expensive telescopes are only supplied with one eyepiece - not enough to cover all the basics. The manufacturer leaves it to you to choose more eyepieces based on your observing preferences and budget.