best waterproof camera and laptop backpack BAGSMART Backpack, DSLR Camera Bag, Camera Bag for Photographers, Fit up to 15" with Rain Cover Tripod Holder, Ivory White : Electronics allowing you to maximize Ogguno 15'' Travel Laptop Code, Model, Capacity, Gear, Weight:1345013, 53 FD, 150m/0.28mm, 5:2:1, 257g 1800 (30L)

best waterproof camera and laptop backpack BAGSMART Backpack, DSLR Camera Bag, Camera Bag for Photographers, Fit up to 15" with Rain Cover Tripod Holder, Ivory White : Electronics allowing you to maximize Ogguno 15'' Travel Laptop Code, Model, Capacity, Gear, Weight:1345013, 53 FD, 150m/0.28mm, 5:2:1, 257g 1800 (30L)

Ogguno 15'' Travel Laptop Backpack for Men, 25L Tactical College Backpacks with Water Pouches Both Sides, Portable Backpack for Men Women Business Work Bag Fight Approved, Small Black Backpack : Electronics

There are plenty of them, so you can use the ones you need on any particular day and ignore the rest instead of trying to make one pocket work for different loads

1800 (30L)

Code, Model, Capacity, Gear, Weight:1345013, 53 FD, 150m/0.28mm, 5:2:1, 257g

And perhaps most importantly, the Flash is inexpensive

allowing you to maximize its potential