I have an SLR camera with a very large bag that holds most of my equipment. It's a backpack style, which is nice to carry because I can bend over and lean while wearing it without worrying that the bag is going to swing around and whack somebody. As long as I wear both straps I don't whack people, I mean. Don't ask me what happens when wearing just one strap. It's not pretty.
The problem is that it's a very big bag that is very heavy. This summer was very busy with lots of trips. The full size bag would be way more equipment than I needed and I knew I couldn't hike 26 miles in it. I needed a camera bag that would carry just the camera and one lens. Ideally, I would have had a Crumpler sling bag, but since I didn't want to spend $50, I was out of luck.
So I made my own.
The grey block in the picture is the secret to this project: high density foam. Regular foam probably isn't going to do it. You need the the super good stuff. This is the product they use to protect lots of delicate equipment and my husband just happened to have a little bit in storage.
I made sure the two foam blocks lined up at the lens hole. Then I shoved them into the bag. The camera fits in the bag lens down. Like this:
If I were to upgrade this, I would probably try to find a leather bag. Then I'd actually glue the foam and hopefully cover the whole foam block section in a nice printed fabric for contrast and fun. Otherwise it's been great. Today, my camera goes with me to a cross country meet. I love taking the lighter bag. My back thanks me too.