A few shots from my recent trip to Colombia

An interesting choice of lens - I've had to do with just the 50-135 when the 16-50 died on a trip, and it was an interesting challenge though not by choice.  The wide shots were all panos, of course, but that does not work with close subjects, movement, etc.  You did well with your kit - thanks for sharing the shots.

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Doug
http://adairphotos.zenfolio.com/
http://www.pentaxphotogallery.com/dougadair