How does a camera really work?

We all use cameras, whether it’s with your phone or an a advanced camera. We take for granted that they work and does just the thing we expect them to do – but do we really think about how they work?

I often find myself prancing around to get the best photo, avoiding the over- or under exposure, trying hard to get the perfect picture. Even after many years as a professional photographer, I still get both confused and fascinated over the fantastic wonders of how the cameras work. I also find it frustrating to not really understand – why doesn’t the camera do as I tell it?!

When doing some usual browsing on Wikipedia, I got a bit lost – as I always get. I start reading one article, then click to the next and the next and then I’m suddenly on dancing cat’s or something like that. This time however, I stayed at the article about how cameras work. I found a video which you will find just under this paragraph. Even though I understand most of how a camera works and what the different settings do, it was really informative and interesting to watch.

I started thinking about the whole mechanism and the procedure that goes on in the little box of magic. It turned out I just had a brief idea, and that there was much left to learn. I have still not figured everything out completely, since it’s a lot to grasp. The facts about how the cameras evolved was however a very interesting thing to learn more about. I knew the principle about how the cameras with film worked, since I learnt it during some of the classes I’ve taken in photography. The fact that digital cameras came very late in comparison to other technology was for me very new and it made me realise just how advanced this technique really is.

So, now I’m stuck on YouTube as well, trying to learn more about how cameras do their magic stuff and how on earth it can process light to an virtual image. And, most of all, how it can fit into a small compact camera! It’s certainly a fascinating thing with a lot to learn, if I ever undertand everything about it.