Anyone using the Tamron 45mm F1.8 Di VC with Nikon D850

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Daniel Lauring
Daniel Lauring Veteran Member • Posts: 9,342
Anyone using the Tamron 45mm F1.8 Di VC with Nikon D850

Just picked up this lens, based on the great reviews. It wasn't as sharp at F1.8 as I expected compared to other lenses I have that are similarly rated. After further analysis I think the loss of sharpness might be due to some pretty high CA wide open, which doesn't match the reviews. There is magenta banding as wide as small branches when photographed against a white background. You can even see a lightening band to the right of the small branch in front of the tree trunk in the attached photo. I'm wondering if this is typical or something might be amiss with the optics on this one.

Below is the Nikon 50mm F1.4 G for comparison (Also at F1.8.)  Nikon seems a tiny bit sharper, which doesn't match reviews.

Nikon D850
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