Brand new Z 24-70 f/2.8 has a big visible dust particle inside

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liyanage New Member • Posts: 3
Brand new Z 24-70 f/2.8 has a big visible dust particle inside
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I had the new Z 24-70 f/2.8 on preorder for a while and it was recently delivered. Today I looked at a couple of shots and noticed that every single one had a dark spot in the same part of the image.

I took a few test shots of a wall at f/22 and f/2.8. The spot is very clear at f/22 and more faint/blurry at f/2.8. I verified that it's not on the sensor or front/back lens element.

I assume this must be something inside the lens? What does it say about the issue if the appearance/shape changes along with the aperture?

f/22

f/2.8

f/22

f/2.8

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