Not a drawback, but keep in mind: on a full frame, 40 mm gives good distortion for large portraits, that is, it is more suitable for long shots, shooting groups of people, landscapes, etc. Even after buying zooms, there is no desire to get rid of it. Pros: Small size, minimal weight, acceptable sharpness, autofocus accuracy, excellent color reproduction in natural light and in pulsed light, no spherical distortion Cons: At first, it was very difficult to walk with manual focusing when shooting video, but gradually the engine is being developed. Not perfect for video, but not bad.
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