For your entertainment...
View attachment 772982
Just fooling around earlier this evening . Its a daphnia , shot at around 30X (20Xmicroscope + 1.6 for the crop sensor) . 7D hooked up to a 1950's-60's vintage Unitron Microscope via a Pentax M42 adapter and an eBay M42 to EOS converter . No aperture , light controlled via the 'scopes sub-stage diaphragm , Aperture Priority , 1/90 , ISO 800 . The specimen was in a cheap plastic concavity slide and kept moving around so had a tough time focusing . Supposed to rain heavily tomorrow PM so maybe I'll try again , this time using my 5d2 to cut back magnification some so I can get a decent crop . and lowering the water in the slide's well so the critter can't hop around as much .