Buying a refracting telescope is one thing, but kitting it out with the right equipment is quite another. This chapter is dedicated to discussing some of the most important accessories you’ll need to get the most out of your instrument. Because of the huge range of accessories now available, we have had to be very selective in the items covered. Those wishing to dig deeper might want to check out some of the reference texts cited at the back of this book. So, where to start? Eyepieces, of course! Eyepieces are the smallest accessories that come with your new telescope, and so a beginner might think that they’re the least significant components. Yet any experienced observer will tell you that these diminutive devices play just as critical a role as your main optics in determining instrument performance. Advances in optical technology have led to the manufacture of high-quality eyepieces, the likes of which our Victorian ancestors could only have dreamed of.