By chance I came across the Canon 28-135mm IS USM hear and behold, the images are much better. Although I still have to work on myself.
Since I have it, it is an ever-top & the kit lens lingers nicely in the backpack. Although I'm not a professional, but could achieve good quality in low and bright light.
The Einzuge what has led me to the objective bothers me & to award the four-star is a bit rickety front of the lens. It's nothing bad, but is a quality flaw in my opinion.
Otherwise, I can only say: TOP optics.