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Has anybody noticed that, when in stills mode, the live-view preview is simply simulating the aperture setting, not actually opening and closing the aperture. I've got the a7s with a metabones IV and a EF 16-35. When I stop down, from say f2.8 to f22, the image gets darker, but the aperture doesn't change. Then when I hit record, the lens suddenly stops down to f22, which looks similar to the preview in terms of brightness, but the depth-of-field will change. I've found a workaround by assigning a button to 'aperture preview' - pressing this will actually change the aperture. Just wondering if anyone is having the same issue, and has found a way in stills mode to have the aperture actually change like in Movie mode.