Choosing the right lens(es) to shoot on can be a challenge, especially for a camera like the Sony FS100. Not because it has limitations; rather because it will accept a massively wide range of lens options. A prime lens kit is great to have but sometimes it’s nice to have the versatility of a zoom lens. Parfocal lenses are lenses that maintain their focus throughout the zoom range and while some claim to be, they not always are. EventDV put together a great write-up and demonstration video showing off how different lenses work on the Sony FS100. If you’re considering a zoom lens for your camera, you should definitely check it out.