Got a very good deal for it and I got it shortly after purchasing my GX1, which is a very nice tool. I like the lens, the AF speed is not bad, the lens is by no means slow to focus, but it struggles a bit when dim. My only question is... Is it normal for it to continuously hunt for focus, even when the shutter button is NOT partially depressed? Never experienced this with any other lens, but my last DSLR didn't have video... Or maybe it's defective. Thanks for I puts.