This is the first (shown) effective macro I've been able to get of an insect. I used a combination of Kenko Extension tubes, a Kenko Pro 300 2x Teleconverter and a Canon 50mm II f/1.8. I can't afford to get an MP-E lens, but for now I'll have to make this work to get a good real macro... The spider's abdomen (in the background) is about the size of a ladybug.