well that photo was probably taken around f2-f4 with a shutter speed of around 1/50 - 1/80 with iso 200 or 400 film (or the digital equivilant)
When the photo was taken the camera probably stopped up (opened the diaphram) which means the camera diaphram changed from a ~f8 to around f4. this lets more light in, but sacrifices your depth of field. The DoF is how much of the photo will be in focus. The smaller the hole in the diaphram (higher f number) will make more depth of the photo be in focus.
The reason the camera would stop up is to allow enough light to be gathered with a shutter speed that can produce a hand-held clear image. Longer the shutter stays open, the harder it is to keep the camera steady, and increases motion blurr.
If you notice in this pic only about 3-4" of the photo's depth is in focus. Most likely this is caused by a telephoto lens or just a wide open diaphragm. I think the photo would have looked a bit better either focused about 6" closer to the shooter so the face was slightly more focused and the ejected cartridge, which is the subject of that photo, is also centered in the depth of field. To do that you would either have to increase the depth of field by stopping down or using a wider angle lens or adjusting the focal point.
I find that stopping down works the easiest since you do not have to recompose the picture with a different lens, and you don't have to mess around with a tiny little POA for focusing. But on a photo like this where the light is limited and the subject is moving, its hard to take in less light, but still allow for a shutter speed that will somewhat freeze the cartridge.
you could change the film speed to 600 or 800, but with an increase in your film speed you sacrifice image quality. I try and stick with iso 100 - 200 film and compensate using other methods.. but that is just personal prefrence.
the best thing to do would be shoot 15-20 photos (or more


) all with different settings and decide which effect and settings your eyes prefer.
Hope that helps a bit Calum
Overall, it is a great photo and I think it will be the desktop background for a while
