>>3212286The K-5 is a pretty well loved camera. Are you sure it's a K-5 and not a K-5 II (you can find that out on the front of the camera).
Each lens manufacturer has their own short form terminology for aspects of their lens, you'll need to learn Pentax's terms in order to know what you want:
>DAThat's the line the lens is from. DA is Pentax's line made for cropped sensors (commonly referred to as an APS-C sensor). There's also:
[D FA]: Pentax's lens line for full frame (non cropped) sensors. You can fit a full frame lens on an APS-C body, but you (shouldn't) fit an APS-C lens on a full frame body.
[DA/D FA Limited]: Standard optics, but with a nicer all metal body.
[DA*]: Premium APS-C lenses, expect a jump in price.
[D FA*]: Premium full frame lenses, very expensive.
[FA]: Old lenses intended for film cameras. They'll fit just fine on your camera, but you'll need to do your research if the lens in question has autofocus. If an FA lens does have autofocus expect it to be noisy.
>18-55mmThat's the focal length of your lens, which basically means how zoomed in your picture will be. 35mm on an APS-C body is (more or less) close to what you would get with your eyes: below that (<35mm) and you're going to be taking shots with a higher field of view than your own eyes, above that (>35mm) and you're going to be taking shots that are more zoomed in that what you'd see without a camera. If you see two focal lengths on a lens name that's what is called a zoom lens, a lens that doesn't have a fixed focal length but a series of focal lengths between the two numbers. If you see only on focal length on a lens name it's regarded as a Prime or fixed lens, a lens that you can not adjust the focal length with.
>WRThat stands for weather resistant, you don't have to worry about taking that lens in the rain.
