I'd say the f/4 did just fine!
If only I always had that much light to deal with.
I've been to a few indoor events recently with camera in tow. I found myself in places flash wasn't an option. My fast glass wasn't long enough. My long glass wasn't fast enough. I tried using the 100mm Macro at f/2.8 and got decent shutter speeds, but not enough reach. I tried the 70 - 200 f/4 and got the reach I wanted, but lacking IS, shutter speeds were iffy and results on stationary targets were too. Sounds kind of like a sales pitch, doesn't it?
What's been moooooooving around there parts lately?

" The Wise and Powerful CDS
Guess my easy week got a little harder.
Know where I could find a good minion?
There's always room for another.


