Hi everybody, yesterday I bought a reverse ring to mount on my 50mm 1.8D lens and try to do some macro shot. I did some test this morning and it seems to be very difficult to get nice result. After a few attempts this was the best results I could get using a tripod 0.6sec @ ISO 200. So I have some questions on how to use the best that ring: -Which aperture should be prefered? -It seems the focus ring of the lens is useless to focus. I could only focus adjusting the distance between the coin and the camera -Can we get sharp result with practice? or it is impossible given that the lens was not meant to be used this way I will take any advice that could be useful as it seems very difficult to get a decent picture... Thanks everybody!