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 Aneta Kociszewska ᠌

Took for Canon 60d. Once I took a SLR with a whale lens, I immediately felt the difference. In general, I am satisfied, but I am thinking of taking an Elka. Has some pros - constant aperture over the entire range of focal lengths (aperture 2.8) - for which I took - cheaper than analogues - quite sharp, quickly focuses, the first copy was without front and back focus - lens hood included Has some cons - subjectively - the color reproduction is not the best (it's not about "yellowness", which does not appear with the right white balance, but about the richness and contrast of colors). When shooting with the Canon 50 ef f/1.8 the color gamut is more pleasing and it only cost around 3000. - Expensive, but cheaper than analogues (actually saved) - Expensive filters (large lens diameter, and as a result, the high cost of filters) - Focusing rings and focal changes are made with a small reflex, the lens gets dirty, it's hard to wipe, I had to buy cleaners