I am ready to purchase a really nice lens but am having trouble deciding. I currently own two prime lenses: 24mm + 50mm. I also own the kit lens that is 18-135mm. I am learning that I LOVE to shoot children, families + maternity. I am starting to try newborns too. SO with all that being said, I can either purchase the 24-70mm OR the 70-2oomm for my Canon. I rented the 24-70 a while back and absolutely LOVED it for shooting children and families. However, I have no experience with the 70-200 so I can't really compare why I would like one over the other. Thoughts? For example, in a couple weeks I'll be doing family photos for 11 people and 3 children. Could I use the 70-200 or will it be to narrow? Need some help!!!!!