One of the nice members of the forum sold me his Bigma and 1.4TC and this past weekend was the first time I got to play with it. Unfortunately, I could only stalk the wildlife in my backyard. However, I really enjoyed how well it worked, and as a bonus, I got further acquainted with my new tripod and ballhead. Together, it was a nice setup and easy to use.
@500mm, F/8, ISO200, 1/250s, on a tripod
@230mm, F/8, ISO800, 1/125s, handheld
and finally, @700mm, F/6.7 (actually higher, what does the 1.4TC do?), ISO200