There are many kinds of camera backpacks in the market. They are usually quite small and all they can hold are a few lenses and a camera. There are of course million small pockets for your memory cards and other small stuff. I know that such backpacks are practical and lots of people use them, but what I was looking was a 45-liter backpack with one pouch for the camera and stuff, and another one for my jacket, sweater or just food and water. Unfortunately, I didn't find one. I started to look through the Internet in order to find some advice about what to do in my situation. I found an opinion of a young person on one of the million forums I had visited, who was writing about you can make your own camera backpack at home. The idea was good and I thought... why not?
This is how I did it:
1. Things you need: a backpack suitable for you (it should have at least two big pouches), an old foam pad, a sharp knife, scissors, a measuring tape, cloth, self-adhesive velcro and two-sided scotch tape.
2. Firstly, you have to measure the pouch which will be your camera pouch and cut the foam pad into suitable peaces. There should be a separate piece for the bottom, both sides, back etc.
3. Once you make the pieces, you shoud try if they fit by placing all of them inside the pouch.
4. Then you must find someone who can use a sewing machine and ask him/her to do you a favour:) In my case it was my belovid mother.
5. During the process of covering the foam pieces with the cloth, you should carefully measure everything over and over again to make everything suited (for example we must have to prepare the front piece three times).
6. Once you have all of the pieces ready, it's time for the self-adhesive velcro. You should stick both its parts in right places so that they will meet when you place a foam piece in the backpack.
7. Ok. The inside is ready. Now it's time fot the partition walls. I joined together two layers of the foam to make them more stiff. Again, you should try if they fit and then cover them with the cloth. To place them inside the backpack, use the self-adhesive velcro.
8. This is the end. The final effect is as follows:
I hope someone will find this description useful:)