Objects that you have never seen before, be magnified here many times.
Tiny ants as big as melons ... it is great fun to discover this world with the macro lens in A4 size, cherries.
I use the lens with a Panasonic FZ-30 and am fully satisfied with the sharpness of the images. For the price you can not go wrong.
However, one disadvantage is the lens:
Focus range straight times at about 1 mm (at 12x zoom with the FZ-30). Here you really need a very steady hand to take pictures in the great outdoors. If plus the wind blows and you try an animal to take pictures on a sheet will be almost mistaken when trying to get the sharpest image on's image and if you have it then managed but is usually only a small portion sharply since as specifically, the degree of field includes times 1mm.
Apart from that, there are probably no cheaper way to achieve such an increase in such good quality.