Excellent lens both in terms of construction and functionality. Super sharp everywhere, even at f4 it is extremely sharp from edge to edge and you feel like the photos were taken with an f8 aperture on a DSLR. It is no coincidence that it is the KIT lens of the Z6 series. It performs exceptionally well on the Z5. You can crop the photo as much as you want and the image remains unchanged, excellent! I recommend it, you won't regret it...