I use this lens for video shooting, sometimes for photos, of course, fr is very small, 24-105 is an ideal solution, but it costs more than 1k euros. The lens is not bad, at 70 mm and 5.6 aperture, just right for portraits, slightly soapy π. But after a year of use, I started having problems, at 28-30 mm when shooting video when zooming, you can see how the vignetting correction disappears, and for a moment the picture dances on the sides, and only at a wide angle. I suspect that the problem is in the loop, there are two of them, which one I donβt know, but I know that one is responsible for sharpness, the other for aperture. I will change both, the issue price from eBay is about 30 bucks