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 Ada Aleksandrowska ᠌

The item was purchased for an additional 24t. R, which is certainly not something he deserves, given that its price is 12-14. Now, without a doubt, I would go with the Sigma 30mm 1.4 lens. In general, the glass is not terrible but also not really good. The 2.8 hole works adequately between 17 and 25 millimeters, but when used with a lens of 50 millimeters, the focus frequently shifts to infinity, causing the photographer to miss some extremely essential images of the wedding. There is something called the front focus, and where it is located is determined by the focal length. 20 percent of the shots were missed. It's not that the colors are terrible, but when the lighting is poor, the BB is just flat-out lying. Maybe it's the 550's fault, but I didn't experience this issue with the 18-135 Canon. I have no concerns about the quality of the craftsmanship; the product worked perfectly in the snow, rain, and even after going from -30 degrees to hot immediately. When focusing, something clicks inside it, and if you shake the lens, it rattles inside as if it had fallen off, but it does its job. Some people have concerns about the stabilizer, but it is effective in what it does. A suitable alternative to a whale in terms of aperture ratio, practical focal lengths, and outstanding video quality when set to 2.8.