Was out with the 25mm on my E-M5 today and didn't notice the rattlesnake noise so I tried to generate it by pointing the camera towards the sun then away, to the sky, and anything else I could think of and it simply stayed silent. I never got the rattlesnake as bad with the E-M5 as I do with my E-P3 but I did get it and now nothing today. Anyone else noticing this? -------------------- Spoke too soon. Just tried it indoors pointing the camera at a fluorescent light and I got the rattlesnake. Seems my outdoor success was simply good luck with the available light at the time (late afternoon).