and hold on tight.
A shot from a series called "Local Flora" that I produced for the Ohio State University. Shot for monochrome.
Canon EOS 350D
Micro-Nikkor P 55mm f/3.5 (M2 extension)
Canon 430 EZ
I've been experimenting with some older macro equipment that I ordered off ebay. I'm actually quite surprised and pleased with the outcome from the majority of shots taken with this 40+ year old lens. It's tack-sharp and great color; my particular copy is a very slightly low in contrast for a macro lens, but I've had no issue fixing that in RAW. A simple coupling ring to mount nikon lenses to canon is all that's needed, which can be easily picked up off ebay for $10. The lens itself ran about $40, and the flash was another $25, which makes a rather strong floral-photography setup for under $80. I used the shipping boxes that the flash arrived in to make a rig that aims the flash downwards towards the subject and also diffuses. Granted, you won't have auto-focus or ttl metering for the flash, but I've found a full manual setup to be perfect for fixed-subject or slow-subject macro.