Quote Originally Posted by Don Kondra
Yes, turns the 200mm into a 280mm...

Cheers, Don
=560mm in 35mm terms...

I'm excited to hear about your experiences with this combo, it's next on my purchase list. The 40-150 is just a bit weak for my tastes - too slow and too short. Go shoot something without the dirty window between so we can see some good sharpness comparisons :-)