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Minolta MC Rokkor 58mm f1.2 performance wide open

Started May 13, 2018 | Discussions thread
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(unknown member) Junior Member • Posts: 28
Minolta MC Rokkor 58mm f1.2 performance wide open

I recently acquired a copy of this lens. I am noticing a strange displaced flare when taking pictures of bright objects. I hope following pictures will describe this better.

Both images shot with Sony a7r iii and are 1:1 crops.

Here is a picture taken at f1.2. Please note the glow around face and the reflection off the paper(top right).

Sony a7r iii/ Minolta MC Rokkor 58mm f1.2/ K&F Adapter - Image Shot at f1.2

Here is the same frame shot at f2

Sony a7r iii/ Minolta MC Rokkor 58mm f1.2/ K&F Adapter - Image Shot at f2

I am really liking the rendering of this lens but im a little very concerned of its performance at f1.2. I saw a similar "shift to the left" in the bokeh when shooting at night. What are your thoughts? Is my lens a bad copy? Are there remedies for this?

Sony a7R Sony a7R III
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