Jena Sonnar 180mm f2.8 - Hazy spot when stopped down

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Orion09 New Member • Posts: 12
Jena Sonnar 180mm f2.8 - Hazy spot when stopped down

All,

I bought a Jena Sonnar 18mm f2.8 lens to use on my Nikon FF DSLR. When I test the lens there is very large hazy spot in the center of the photo when as the kens is stopped down. It starts @ f2.8 and gets worsened as the lens is stopped down.

To eliminate any sensor issue, I shot the same photo with a different lens under same conditions. And there is no issue with the sensor. Just to be clear, I'm not shooting directly into the Sun.

Any ideas?

@ f2.8

@ f11

It was a cloudy day and this was shot down from my patio on the 3rd floor.

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