The Sigma 18-50mm f/2.8 DC DN Contemporary is a compact, lightweight lens designed for Fujifilm users looking to keep their gear portable without sacrificing versatility. While Fujifilm’s own lenses are known for their excellent build quality and performance, they tend to be heavy, making them less suitable for travel. That’s where the Sigma 18-50mm comes in. But how does it actually perform in real-world use?