More than once I have read the comment that this is a great lens ...."once you learn how to use it".
You guys care to school me on shortcuts, pitfalls and the ins and outs ?
My use will be birding. Thanx
A few more points, assuming you will be much farther away from your subject than 6ft in most situations for your stated application, infact, more like "near infinity", you can reduce focus hunting by doing the following (especially in low contrast, low light, small subjects in bushes/foliage and similar such situations):
1. By default, setting your lens to the longer min focus distance setting (6.5m - infinity IIRC) and switching to the shorter one only when required.
2. Starting with the focus distance scale near infinity and then start focusing.
Also make appropriate use of the two 2 IS settings and push ISO to get faster shutter speeds in low light.
I will leave this discussion here as this is a pictures thread. If you have more questions about TC, a whole lot of discussion has happened on this forum in various threads. Please feel free to PM if you don't happen to find what you are looking for, will be happy to help.
Just a random shot from the other day...
Sunset Agara Lake, Bangalore by nikmar08, on Flickr