OM 100mm F2.8 on EM5

Here's a vote for the 40-150.  I've made several posts with examples from this lens in the past week or so (links below).  It's sharp, but of course, slow.  I don't know anything about the other lens, but I've been very happy (and surprised) with the results from this little lens.

http://forums.dpreview.com/forums/thread/3362854#forum-post-50603913

http://forums.dpreview.com/forums/thread/3362094#forum-post-50594177

http://forums.dpreview.com/forums/thread/3358053#forum-post-50545234

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Mike
Tampa, FL