No other lens (Oly 14-42EZ, Pana 45-175PZ, Oly 45mm 1.8) I have such vivid images geknippst as the BLC 9mm.
The special, and so far hardly thematized advantage of this "lid with glass hole", the variable in 3 positions fixed focus is (I took almost always mean focus position - unless the small lever adjusts "itself" by mistake).
From this - at first glance might be more detrimental - fact be an invaluable advantage results - especially for street etc. Action Photography: Any form of tripping or Fokkusier delay is eliminated. Ie, shutter lag: 0.00000ms !!! Thus, the camera triggers precisely the moment in which one pulls the trigger. Many "snap-shots" would not have been possible if the E-M10 would only fokkusiert with another glass each. Corresponding tests with the 14-42EZ are -at least from the quick trip out - failed miserably.
For this reason, the BLC 9mm now almost an ever-top for me. Whether I to even the 9-18mm zoom anschaffe, I would like to decide the next photo festival in Zingst after a few trial shots.
As far as my - all very positive - experience with the BLC 9mm.
Strong buy recommendation - especially for all street Photografer !!!