Dear friend Surapon. Not a stupid test, but has many environmental variables that prevent a rigid and repeatable comparison.
To judge the ISO performance of a camera should use a always the same lighting, and make sure the shutter speed will not caisar shake, and make manual focusing with live view before starting the photos, not more alterarr the focus to the test end.
However you can only judge the image noise, regardless of the sharpness.
Thank you, anyway.
Thanks you, Sir, Dear my teacher Mr. ajfotofilmagem.
Yes, Sir, That is a great Idea to use Live view to do manual focus before shooting, to get the best Focus.
Yes, I will try again tomorrow.
I try to adjust the Back Focus from the Camera, But I fail this time, I will try again, Sir.
Yes, in the day time = Very difference light in every 2 minutes, depend on the location of the cloud, You are Right, Sir.
To night, With Minimum Existing Light / Ambian light change, Yes, Sir, I find out that, the Super High ISO of This Camera is usable BUT NOT GOOD YET.
Have a great night, Sir.