I have a Tamron 2X TC, a Tamron 1.4X TC, and a Pentax 1.7X AFA.
My recommendations:
- Don't buy any 2X TC.
- Don't buy any 1.4X TC.
If you need a TC, buy ONLY the Pentax 1.7X AFA.
If you don't have enough money for it right now, don't buy anything. Save up.
Additional notes:
- If someone tells you there exists a 2X TC that works with SDM lenses, be doubtful,
very doubtful.
- If someone tells you there exists a 1.4X or 1.5X TC that works
well with with
all SDM lenses, be doubtful,
very doubtful.
Last edited by SOldBear; 09-16-2011 at 06:05 PM.