Few questions from safari participants make me cringe as much as the one about using a Teleconverter with their consumer or prosumer lenses. Both Nikon and Canon have worked hard on excellent Teleconverters for their high-end pro Telephoto lenses, but for some good reasons have orphaned their other lenses in that regard. Solutions were all ugly, involving a loss of Auto-Focus and often physical modifications to lenses. But now all that has changed with the introduction of the …

We just finished another successful Texas Bird Photo Safari. I'll be writing more later in the week but since so many of you are curious about the Sigma 120-400mm Telephoto Zoom lens I wanted to let you know that it was a complete success.