Here's one of the macro pictures I took with my sister-in-law's tamron 90mm AF Macro 2.8.
This little guy was extremely small. This picture is 1:1 and a pretty large crop to boot. I think he was only 1 or 2mm in size. You can see my wife's skin lines on this.
I remember when I lived in the Philippines, I used to chase these and sand crabs down to use for bait, when surf fishing. Nothing ever bit them though. Pretty neat image there Carl, thanks.