Banding with the E-M5 and the 20/1.7: A potential work-around

One more thing about springs. The Olympus 45mm has a pair of more normal looking springs, hooked into the sides of the case (at 5 o'clock and 7 o'clock in the image) that tug the front element back towards the rest of the lens.

I never investigated this very much but assumed it had something to do with focusing for that lens, too.

http://www.pbase.com/rcicala/image/147030958/large

Click 'original size' if you want to see it in detail. Not very good images of the left side spring, we were documenting for future training, not really for publication. Sorry about that.