I was about 10 cm from the object. About the same as my normal macro function on my camera, without the lens. I always thought i had to put on the macro function and put on the lens.........................but you just put on the lens and zoom in. Rather nice, that you can zoom in or out. It sometimes just makes a difference if you dont zoom in to the max.
Anyways good luck with finding the right thing for you
Greetz Daan