I picked up a tamron 90mm macro lens for $20 at a garage sale this morning, and just went for a walk around the house with the kids to see what we could find.
There was a tiny little jumping spider, a couple of mm across, first shot is him on our brick wall hiding in the grout. Well above my head. He disappeared from view just after I took the shot, my daughter spotted him on my arm, stuck in my jungle of hair!
I let him back onto the bricks, but it turned out a much bigger (maybe 4mm length) jumping spider was waiting for the poor bugger.
Last shot is when the bigger guy caught him
These were just handheld shots to play with the lens, with the on-camera flash of the D90, ISO 800 (settings left over from trying to shoot the comet early this morning).
I'll have a proper play with it when the semester is over. My girls are loving exploring the hidden micro world though.
They threw some cat biscuits on the cement this arvo to attract the green ants, and my 12 yr old chased the ants with the lens.
I bought one of those multiple extension tube macros off eBay some years back for $7 where you attach a lens to the tube, and then the tue to the camera. OK, no autofocus (but I always manually focus anyway), but it does the same job. I usually use the old EOS Rebel kit lens as the glass up front - does a fine job!
The other handy part is I can use it on the scope if I need more backfocus - just put the macro tubes onto the T Ring, and then the rear tube onto the camera, and voila! Haven't had to use it yet though.