Offset iris on a NEX 16mm lens.

[lenshoarder]

I just bought a 16mm lens. I noticed that the iris seems offset to one side. Also, at a full F2.8 I can still see the iris on one side. That only happens if I set the aperature manually. If I put it into full auto mode, the iris does complete disappear. Is this a known "feature" on the 16mm? I checked my 18-55mm and it isn't this way.

Here's what it looks like at various settings.

Wide open, notice the part of the iris is still there.

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Partially open, notice how it's offset to one side.

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Closed.

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