[littledrawe]

I have the Kenko 1.5x autofocus teleconverter. I have only used it a few times but when I put it on the camera and turn it on with the DA 50-200mm the first couple times I try push the shutter release button all I hear is this sound that is kind of like a 35mm camera that is trying to start a new roll of film. Sometimes I have to turn the camera on and off a time or two and then it will start to work or after a couple pushes on the shutter release button it starts to work. I have been conscious to use it with enough light but I am wondering why it takes so long to get started? Any ideas?

[ultraviolet]

Some time the auto focus screw in the camera and the screw in the lens might have alignment problem for a few second but after that everything was fine with my 2X Tamron pz-af besides the focus hunt.