Prime vs Zoom Lensequipment
A prime has one fixed focal length; a zoom covers a range.
Primes are usually smaller, sharper, and faster (wider max aperture) for the money, but you 'zoom with your feet'. Zooms trade some speed/sharpness for the convenience of one lens covering many focal lengths.
Use this when
- Low light, max quality: fast prime
- Travel, events, flexibility: zoom
Common mistake: Buying a slow superzoom and struggling indoors.