Excerpt: I bought this lens based on a few reviews and some colleagues reccomendations! I have gotten a lot of use from it and it has been exactly what I was looking for for special macro tight images! I love it. I would totally recommend it for photographers who are comfortable with manual focus!
Excerpt: I've been using this lens since 2004. It was the reason I went with Canon rather than Nikon. I wanted a dissecting microscope mounted on my camera---and I got it. Pair it with a 24EX twinlight, a focusing rail, and focus stacking software and you will will go where no photographer has gone before. Respect DOF and lighting and it will make every photo you take out-of-the-ordinary.
Pros: Durable, Easily Interchangeable, Rugged, Strong Construction