As requested last week from a forum member. This is the this is first macro test shot I did (I'm no macro shooter) when I first received my Sigma 28mm F1.8 EX DG ASPHERICAL MACRO.
First I must say that contrary to popular belief, taking low light macro shots of nipples isn't as easy as it sounds, as this was my first attempt. Its really hard the get your (now exgirlfriend) subject to be still and cooperative with a camera, with a short fat lens, inches from their breasts.
She asks, "why do you want to take pics of my nips
?"
My reply, "cause I can
"
As you can see the Sigma demonstrates excellent off-center sharpness @ f2, excellent detail in the nipple, and nice bokeh. Note the soft milky like out-of-focus nipple less than a foot in the background.