I just bought the Meteor 5-1 17-69mm f1.9 zoom for my BMPCC... but i'm not really clear from the thread above about which M42-MFT adaptor is going to fit best... and where to get it from. The Rainbowimaging one mentioned above is no longer available. Here's some ebay options
http://www.ebay.com/sch/i.html?_odkw=m42-m4%2F3&_osacat=0&_from=R40&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xm42-m4%2F3+adaptor&_nkw=m42-m4%2F3+adaptor&_sacat=0
any suggestions?