Review on Sigma 17-50mm f/2.8 EX DC OS HSM FLD Lens: Large Aperture Standard Zoom for Canon DSLR - International Version (No Warranty) by Amar Amar ᠌

A good alternative to the native (which is 2 times more expensive) lens. Aperture 2.8 already allows you to shoot more or less interesting portraits. An adequate version of the standard crop lens. Has some pros Aperture (aperture 2.8 - working), good design. Versatility of focal lengths. Good working stabilizer. For April 2022 adequate price. Different cons: Average in speed AF, which also misses quite often. Yellow. Buying a lens without front / back focus is a great success. The stub is noisy.