I just LOVE this lens! It has the quality of a premium prime lens but the flexibility of a zoom. I can't believe the sharpness of this lens! The only downside is that the lens is heavy. I am an avid outdoorsman and outdoorsman and use the Peak Design Gripper Clip; but wherever you put the lens, it pulls. BUT it's better than having multiple lenses. I didn't notice any vignetting at 24 or chromatic distortions.