In other news, I am a little disappointed in how soft the 2x teleconverter makes the 70-200 lens. Not sure if it’s a focusing issue or just limitation of the optics.

@jerry I’d be curious to see a comparison between teleconverter on a good prime lens vs a longer zoom.

@o0_o after I changed the auto focus a bit, the teleconverter on the 70-200 turned out pretty good. I would expect they TC+a good prime wound be better than a zoom by a lot

@jerry iirc you can calibrate for front/back autofocus