A few people have asked me to post the performance of the sigma APO 70-200 EX plus 2x TC.

On a recient trip to texas I visited the wintering area for the whooping cranes.

This is cropped to 1100 x 850 pixels out of a K10 image, the resized to upload.

[skinja]

It just goes to show you, what good equipment can do in the right hands.

Thanks again.

John