|  | sent on July 06, 2024 
 Pros: Solid construction, tropicalized, aperture ring, weight, versatility, minimum focusing distance, very responsive and precise AF, sharpness to spare, reasonable price for the lens category.
 
 Cons: personally I don't see any!
 
 Opinion: In my opinion, and for the years of experience I have gained as an amateur photographer let's say "evolved", I can safely say that this fantastic Sigma lens has nothing to fear when compared with other zooms of the same category, and not only that, I am also sure that it can give a hard time even to several fixed lenses of the most famous brands for its excellent performance. Already at f/2.8 and for almost the entire image, not just in the center, it has a class-leading sharpness! But the thing that leaves you pleasantly surprised is that the sharpness remains constant throughout the focal range. The edges, at full aperture, are slightly behind the image center "as it should be for the category of lens, especially for bright zooms like this". Having said that and just to be clear, we are talking about an all-round professional lens, you can also appreciate the excellent bokeh, never nervous and above all very fine and creamy, the points of light are perfectly circular and very pleasant to the eye. I must confess.... I have never been a lover of third-party lenses, whether zoom or fixed, but I must also admit that this lens convinced me 100%, not only for the optical qualities but also for how it is made, in fact, the materials can be seen and felt to the touch that are premium, made to last! even the lens hood, which often leaves a bit of time in many lenses, is built really well. Still in terms of construction, the rings, all of them, are fluid at the right point, even that of the diaphragms has the right step in the transition from one diaphragm to another, moreover, there is no play between the moving parts. The zoom barrel when it is at maximum extension, has absolutely no play sign this, that the construction is very fine and accurate. Another important aspect to point out, although it is not a lens designed for macro photography, in part it is as if it were, in fact the minimum distance is only 0.17m at 24mm and 0.34 at 70mm, thus allowing you to get very close to the subject and make a close-up of an insect, flower or anything else really rich in detail..... so much stuff!. The AF is fantastic, of course, the camera body also plays its part, I currently use a Sony A7rV, but I can safely say that it is very responsive and extremely precise, for sure it will not disappoint even the most demanding "like me". As for the mental fears that many people have about chromatic aberrations or flare, which I personally give little weight to "unless they are too evident", well I can tell you that even these aspects are almost non-existent or so minimal that you don't even notice the presence if there was any, especially in terms of aberrations.... As we all know, the perfect lens has not yet been invented. Ultimately; I am super satisfied with the performance of this superb all-rounder, and without any reservations or indecision, I highly recommend it!
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