I've finally saved up some money for a new lens and I wanted to take a little poll.
Would you rather purchase the 70-200 f/2.8 L IS USM ii, or purchase both the 70-200 f/4 L IS USM and the 100mm f/2.8 L Macro?
The way I see it, with modern ISO performance on FF cameras, f/2.8 isn't as critical as it use to be, but I wanted to read some discussion.
Your signature lists a 7D and an EF-S 10-22, so are you planning on staying with APS-C or moving to FF? If you plan on staying with the 7D, it is better to go with the 70-200 f/2.8 IS II because crop bodies can use all the light they can get. Even with FF, I'd still recommend the 70-200 f/2.8 IS II over the other option for most users. And if you have kids or need to shoot events indoors, f/2.8 is the slowest you want to use when the light is low. Shooting at ISO 6400 and above indoors with f/2.8 already restricts DR and editing latitude significantly. Having to go to ISO 12800 with an f/4 lens is worse. So, I'd suggest trying the 70-200 f/2.8 IS II in the store and see if the weight and size suits you. If it does, I'd opt for that option over the 70-200 f/4 IS + 100L. You can always get the macro later.