skyDomeLight blured on final render with Arnold

[Anima_iii]

Hello, 

I try to have good result with the render of Arnold but the final image is blured.

I saw a topic where someone ask about the cause, which could be the skyDome being too small, or the camera's DepthOfField turned on.

Each of those solution did not help me to solve the issue. Is there anything else I could try? Maybe the resolution of the image I've chosen to apply on the skydome is not wide enough? Its says 1920x1080. Is that enough for a skyDome?

I leave you a sample of what I got.

Also, I have another question. Is it possible to render the skyDome without the light reflecting on it? The image is already bright enough. Is there a way to render with the viewport or to shut the light from the skyDome? 

Thank you.

[CiroCardoso3v · Accepted solution]

That could be due to the HDRI resolution. You can check HDRI Haven to download a 4K or 8K to quickly check. 

https://polyhaven.com/hdris

[Anima_iii]

Yes that was the issue here. Thank you!