I used a powershot A3400 IS on my last lo. When you click on the post for the close up, its blurry in places. This is a new camera and ive always had that problem with it. My old camera , an old Canon, takes pics that look really great on close up. I couldn't use it because it has battery problems. It goes through double A's like water. Is there a way I could get good close ups from my A3400? I looked in the manual awhile ago and couldn't find an answer.
Not every lens lets you take "macro" pictures as close as others. that could be the difference between the two cameras.
Or going by what you said, maybe its a depth of field issue? Is part of the image in focus with the stuff in front and behind that out of focus? It could just be a large aperture which gives you a narrow dof. If you use a smaller aperture it will increase what is "in focus".
I find the easiest way to take a macro shot with a macro lens is to turn auto focus off, adjust the focus to as close as it will go, and move your camera in and out to adjust focus manually. that way you will get as close of a shot as you can.