I bought this bag to store my Nikon D80 with a 18-200 lens attached. It also had room for a 70-300 lens, a SB-600 Flash, a 50mm prime lense as well as a cleaning kit!
The quality is top notch and it feels very secure and protects the kit well. I bought this to replace a slingshot bag - this can only go over your left shoulder and if you have it on all day it starts to get heavy! This bag however can be swapped from shoulder to shoulder throughout the day, much more comfortable!
I have just used this bag at the Fairford air Tattoo where the weather was terrible, heavy showers lasting for 30-45 mins before 10 minutes of dry weather, then back to rain again, the AW covering worked perfectly keeping everything nice and dry despite driving rain!
Definately recommend this bag for foul weather, it is a price worth paying to protect a lot of expensive kit!