The Olympus 60 macro is no better than the Panasonic 45 2.8

In my experience, the Oly is the better lens. Since it's cheaper, I can only recommend the Panasonic for users if Panasonic bodies who need IS, or those who dislike the 60mm focal length.

I did several controlled tests between the two:

http://admiringlight.com/blog/macro-battle-olympus-60mm-f2-8-vs-leica-45mm-f2-8/

http://admiringlight.com/blog/macro-battle-part-2-olympus-60mm-vs-leica-45mm/

I have owned the PL 45 for over a year, and now have the 60. Here's my full review on the 60, if you're interested.

http://admiringlight.com/blog/review-olympus-m-zuiko-60mm-f2-8-macro/

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Admiring Light - http://www.admiringlight.com
Jordan Steele Photography - http://www.jordansteele.com