Review on Sigma Contemporary Lens for Canon EF: 100-400mm f/5-6.3 DG OS HSM by Jagvir Singh ᠌

Pretty normal telephoto lens. As I understand it, with such variable distances, lenses cannot be lighter . If so, this is a good lens. With its pros. Convenient focal lengths. lock!) Very convenient cut-off distances: 1.6 m - 6 m; 6m - ∞; full. That is, you are not the author of gorgeous photos of a clear, but uninteresting background, and the subject of photography is blurred, as well as the nearest bushes (branches), when a beautiful bird is seen behind them as an indistinct blurry spot! But! Do not forget to switch to "Full", otherwise, in opposite conditions, the photo may fail, for obvious reasons )) Cons: Dark. Sometimes it does not want to focus pointwise, for example, in bright sun in dark areas! (And in general, in dark, low-contrast areas, which, at times, is very depressing! Something like that.