Nice article! I had a party photoshoot today and the main lens i used was a 50mm f1.4 lens, the lighinhg was perfect but still it ended up that several of my photos framed well were blur. I should have taken a wider lens like 16-35mm or 17-40mm lens for such events, I would recommend to everyone to use the right lens to ensure avoid such blurred photos even though they might look okay through the view finder.
regards
jos