But still that image is blurred and wider. Nothing has changed !
It's wider because that's what the camera actually sees. The canon firmware does distortion correction when it creates the jpeg, which discards much of the data around the edges. DNG gives you the raw data before correction. You can create a lens profile to do the correction yourself.
Not being able to see your image, I'm not sure what you are referring to as "blurred". The raw can't actually be less focused than the jpeg, but differences in processing could make it look softer. If you want feedback on what you can do differently, you should upload the original files somewhere.
What else do I miss? I was supposed to get a sharp high quality image !!!
This is a misunderstanding. DNG gives you the raw data from the sensor. Whether you can use it to make a better jpeg than Canon is up to you. Canon's jpegs are quite good though, so you will probably have to work hard to do much better.
