Does this help:
Where 1:1 is lifesize, 2:1 is twice lifesize and so on. 1:2 would obviously be half lifesize....
I\'ve used 35mm film frames there. Most digital sensors that us mere mortals can afford are much smaller. The 5 cent coin shot is an example.
Of course this is not the end of the story as when you view at full resolution (or an enlarged print from a neg...) the image looks like this:
You can imagine how the 5x magnification ant would look blown up that big!!!
This is a teeny pic of a 4 or 5:1 shot...
A lens that\'ll do half lifesize or bigger is more than enough for web resized mini pics. Pretty much any halfway decent compact digital will let you do that these days, so stick the thing in macro mode, whack it on a tripod and take some pics!