Hi Stan. I suppose that the 1.4 extender you used with your 50-135 is
the new HD 1.4 converter. If that's the case, how do you find the
resulting IQ and focusing speed of the HD 1.4x + 50-135mm combo? I am
mulling the purchase of that converter to use it mainly with the
mentioned lens and your first hand experience report would be very valuable.
Carlos
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