Despite my preference for the Zeiss 100/2 macro, which is an order of magnitude more expensive and lacks AF, I am really pleased with this lens. It takes stunning portraits and focuses quickly and precisely. Even though you won't be able to focus on the fly's eye (there's an MP-E65 for that), it allows you to take fully functional images at 1/25 (if it's not macro), and I've never looked back.
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