most cameras have a bad autofocus for closeups and you end up focused on the wall behind the bud. this is just a programmed action and it happens when you are too close or not enough light. holding the button down halfway will give the camera more time to focus and decide an appropriate focal range. try focusing the camera on something large, flat, and well lit, hold the camra 6inches away from the wall and push the button halfway and see if it focused clearly on the wall, may need to have 12"+ depending upon your camera. once you find out exactly how close you can take a picture focus on the wall again and once it stops and is clear move over to your subject. still holding the button halfway, move the camera to where you get a nice crisp shot and take at least 3 pics. i use this to get the closest possible focus without hassle and hundreds of trash shots.
the 10x lupe in front of the camera works surprisingly well, macro mode zoomed out all the way. hard to hold still with that kinda magnification