cpreston
Veteran
For handheld event work, I think the 24-105 f4 is great. I wished it had the rotational image stabilization of the 24-70, but not for twice the price on the used market. Plus, the extra reach can be crucial and you will never see the extra sharpness of the 24-70 on a 1080p sensor. For narrative or cramped location work, I rely on the 17-55 2.8 when I'm not using primes. But, for event work, I try not to shoot under f4 for worry of missing focus and I try not to shoot under 24mm due to the skewed proportions, so the 17-55 doesn't offer any benefit with it's lack of reach.