[Vectis Birder]

Hi VB - I sometimes use mine with the Kenko Pro series as these have the necessary contacts built in. But because of all the other clobber I have I tend not to use tele-converters - only extension tubes when required. But the answer is yes - you can - but as far as I know the kenko are the only ones that have contacts. And sometimes you will find your EXIF is out ie the camera does not recognise you have used a tele-converter.

Thanks Andy.