teleconverters for the AF-S 600mm f/4D ED-IF
All the ads for teleconverters astrix the AF-S 600mm f/4D ED-IF for "limited" autofocus. I know several people here are using teleconverters on similar lenses. Does anyone know which is best and actually functionally workable for this lens. I already have the TC 14B and TC 20B and find manual focus to be a total bummer for my eyes, this lens, and the action I'm often shooting.
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