If there is a video upscaling mode in the camera, then you can use it as 2 lenses as a 40mm and 80mm equivalent - for example, the Panasonic GX80 has such a 2X zoom function without quality loss when recording FHD, which is very convenient, but this lens has enough sharpness and no chromaticity and distortion that makes this possible. Has some pros I really like the FR and sharpness, compact, there is a focus ring. With its cons. Focusing is still not mechanical, but electronic, that is, along the ring, but the ring, as it were, controls the focusing motor, and does not move the lens directly. In terms of experience, this is very similar to the classic scheme, but not quite the same. There is no aperture ring, few focus modes (but this is not really necessary).
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