Apart from theoretical lectures, there will be a lot of hands on experience. This will make it easy for you to apply what has been learned as seen in the photographs that have been taken using the camera.
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Cameras have lots of little knobs, dials and meters. If you stare at your camera long enough, you’ll be amazed at how many ways you can adjust your camera and change how your pictures look. But did you know that one of the most important decisions you can make when taking pictures happens before you even load your film?
The speed of your film is one of the unchangeable qualities of a picture. There are plenty of ways to toy with aperture, exposure, and focus. However, once film is in a camera, there is absolutely no way to change the way that film reacts to light. In every photograph you ever shoot with real film, you are adapting to the film speed. Film does not speed up or slow down to suit your needs, so it is important that you make the right call the next time you head out for a fresh roll.
What is ISO?
The film speed measures how sensitive the film is to light. Low film speeds mean that the film is less sensitive and needs a longer exposure while high speeds are very sensitive and need shorter exposures. The film speed is referred to as ISO (International Standards Organization). Any film you buy will have its ISO marked on the box, and common speeds are 400, 800, and 1000, with 400 being the closest to the “standard.”
The ISO of your film affects every aspect of the way your camera works. Your light sensor (if you have one) has to be set correctly for the film you’re using, your aperture will be more or less limited depending, and your shutter speed will likely have to decrease or increase to accommodate the film. Even digital cameras have a simulated (and adjustable) film speed that they base their calculations on.
Selecting the Right Speed
The ISO of your film decides what you are capable of photographing, and how. Because high-speed film (ISO 800 or above is a good general rule) requires less time to expose, you can shoot images with much higher shutter speeds than with a slower film. The result will be a photo with crystal clear action; fast film is great for taking sports or anything with movement. When you see a picture of a basketball player suspended in mid air, you know that the image was probably taken with high speed film. With a slower ISO, the player in the picture would likely be a big blur. Faster film also requires less light and can be very useful in an indoor situation where a flash is not appropriate.
Lower speed film captures more detail because it has more time to absorb light. It’s important to keep the words “detail” and “blurry” separate- more “detail” in a picture is similar to a high definition TV having more “detail” than a regular television- more of what was originally there will be seen in a photo. The longer film can “see” a scene, the better the scene will be represented. Lower speed films are great for portrait photography or images in which you wish to show great depth of field.
Film Speed Experiments to Try
To get a good handle on how ISO works and what it does to your images, here are a couple of things to try out the next time you’re planning a shooting day:
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The world is growing and changing at a phenomenal pace. Technology has skyrocketed us forward from even a mere fifty years ago. In truth, technology has changed human perception of life. No longer do we sit and patiently wait for the newspaper. How many of us are able to find time to read the newspaper? Surely getting your news fix on the Internet is far quicker and not to mention “greener” for the environment.
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