Quote Originally Posted by Scott
<span>I have a 24 &ndash; 105 f/4 L which has been diagnosed with the gyros not stoping and noisy, very noisy

Hi Scott! Who diagnosed this behavior? Gyros do not make noise, actuators (the motors moving the stabilizer lens or lens group) do. Unfortunately, this does not solve your problem.


The fact that the lens is very noisy comes down in favor of a mechanical problem; on the other hand, the noise stopping only when the lens is off the body would suggest a different cause. Electronics may sometimes "go insane" when exposed to strong electromagnetic fields, excessive heat or other kind of physical stress...


Apart from the abnormal noise, is your 24-105 functioning (AF and IS)? Can you tell if IS is working properly by looking through the viewfinder at 105mm, even if now you can't compare IS off/on?


That's quite an intriguing problem... I couldn't find anything similar googleing the web... Please, let us know how all this will end up. Good luck!


Pier