gonzogolf wrote in post #17219737
If you want a long lens, get a long lens. Dont mess about with Teleconverters. They sre fine for occasionsl use and 1.4x pairs nicely with some quality lenses. But if your goal is to shoot long often you are better off starting there. I won't advise you which lens, but dont discount the 100-400L as an option to consider.
thanks for the response. a good point. In reagrds to TCs - maybe I just got star-struck with what Gabe was able to produce in the 120-300 sample thread. He often uses the TCs for wildlife including BIF.
And, yes, I kind of forgot about the 100-400. I liked it when I played with it in the store. So, let me revise my original list and add the 100-400. The biggest benefit that I can think is the push-pull and that it is the lightest of the bunch and of course it has excellent IQ for what it is.
timbop wrote in post #17219752
+1. I've never liked TC's, even on some pretty good lenses. They tammy should be fine for daylight, as would the 100-400.
thanks for the response. added the 100-400 for consideration. Though if I buy it...I wonder how long until the v2 comes out?! 
I think the opposing team might get a bit annoyed at a fanatic father hovering around the edges of the field.
watt100 wrote in post #17219771
Do a search in the photo section sharing here on POTN and on FM for soccer threads and the lens used
Most are not satisfied with teleconverters / extenders for action or sports pix
Out of those lens I would pick the 120-300 f2.8 but of course it cost a lot more
(maybe worth saving for!)
I use the Canon 100-400 for soccer -
( in daytime !)
60D
100-400
f5.6
iso 1600
200mm
thanks for the example and the personal experience. How far were you from the field when you took this? was the action on the far side or the close side of the field?
The stands in our home "stadium" are about 20 feet from the sidelines - so not so bad. About 6 feet above ground level - so it gives a decent perspective. I was just finding the limitation on mid field and further. Thanks!!