Originally posted by Alizarine Use will be for event coverages such as press conferences, concerts, and corporate events. I'm currently a writer for a PR company and I'm pretty sure they're going to have me do some shooting (saves money for the company also, I guess) during our events.
It depends a little on what lighting you're planning to see, how physically big these events are going to be, and how 'close' you want to get to the subjects.
The DA* 16-50/2.8 is good for the wide to medium tele range.
The DA* 50-135/2.8 and the FA* 80-200/2.8 are good for the tele range, you just have to decide if you want the additional range of the FA*, the size of the lens isn't too conspicuous, the weather sealing isn't necessary, and if the hunt for a used one is too much work.
The DA* 60-250/4 might be an option as well, if you don't need the additional light gathering and subject isolation of F2.8.
If I was going to shoot a miscellaneous event, and had no idea what I was up against, my bag would have the DA* 16-50, FA* 80-200, DA* 55/1.4, FA* 85/1.4, FA 31/1.8 Ltd, and maybe the A* 135/1.8. For flavor, I might take the Sigma 4.5mm fisheye, or the Sigma 8-16mm, depending on what I knew about the event.
If I needed to stay light, I'd take 3: DA* 16-50, FA* 80-200, FA 31/1.8 Ltd
If I needed to stay super light and inconspicuous, DA* 16-50, and DA* 50-135.