These were all taken with my favorite lens, the Canon EF 70-200mm f/4L IS with an EF25 II extension tube added. None of these are 1 to 1, but you can get an idea of the quality of the lens, even with the small file sizes neeed for upload here. Oh, my camera is a Canon 5D MkII. One great thing about the 70-200 is the IS feature which makes hand held very easy.
There was tons of dust today (not far away there was a pile up on I-70), so you can see a lot in the pictures.