Posted by pierred on 29-08-2007 20:33
#18
Hello,
Frank Koehler wrote:
But one observation: Some insects are frightened by my Canon camera. I think it?s the USM (ultra sonics motor) producing dangerous predator sounds. So sometimes it?s better to use the manual focus.
I don't have any conclusive data about this aspect, but I do think that some insects are sensitive to the USM motor "noise".