Yellow Stone Recommendations

Strange thread.

Skip the TC. It works poorly on 100-400. Bring the 100-400 and a good quality monopod.

A 24-105 and 100-400 is a good Yellowstone combo on a 60D. Pick up a 10-22 or 10-20 for wide angle for a three lens solution.

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Grizzly bears of Glacier National Park
http://www.parkcamper.com/Glacier-National-Park/Glacier-grizzly-bears.htm