- - If you use an aperture of F2, you may photograph at an ISO of up to 1000, but for a whale ranging from 16-50 I needed an ISO of 2022 or more. - The sharpness is already satisfactory at F2
- - if the sharpness at F11 is still acceptable, then at F13.5 it is already considerably worse, and then the picture is generally murky - there is ED glass in the scheme, but the chromaticity is not less than that of a cheap whale 16-50, if not more - very significant distortion. - if the sharpness at F11 is still acceptable, then at F13.5 it is already much worse. Despite the fact that it is a 12mm lens (nearly fish), when recording handheld and using matrix stabilization, the picture in the video occasionally appears to "dive" to the sides, which, in my opinion, looks awful. - price. despite the fact that $200 is significantly less than the typical cost of native optics. It would be wasteful of my money for me to spend $200 on a game that I would then be dissatisfied with and put away. By the way, the price of this lens is significantly lower on the secondary market than it is on the market for brand new lenses due to the significant decrease in demand.