When learning about exposure, you need to know the relationship between aperture, shutter, and film speed. The first thing you do when you load your film is set your camera to the proper ISO setting based on the film that you are using. This is the film speed. Remember that this setting needs to stay the same until you finish your roll of film.
The aperture controls the amount of light entering the camera. The shutter speed controls the duration that the light enters into the camera. The light meter in your camera will recommend a shutter speed to use based off of your film speed setting and your chosen aperture setting. As you change your aperture, your camera will recommend a different shutter speed. However, the exposure should be the same.
The first part of this assignment is understanding how this process works and understand the idea of Equivalent Exposures (where different camera settings will give you the same exposure results).
Equivalent exposures: due the following for the first five frames on your roll of film:
• Photograph a landscape subject with consistent ambient outdoor light (preferably full sun).
• Set your ISO setting to 400 (film speed of Tri-X or HP5 film).
• Set your Aperture to f/22 or f/16 (depending on your lens).
• Look into your camera, set your camera to the recommended shutter speed, and take the picture.
• Set the lens to the next Aperture setting, readjust the shutter speed, and take the photo again.
• You will do this process for 5 frames. When you process your film, you should have five frames that all look similar on your proof sheet.
• Note! Use the cheatsheet ruler that I demonstrated in class. If your lens only closes down to f/16, your 5th frame will be at f/4. Look at your scale and make sure that your shutter speed isn’t faster than 1/1000th of a second. If your scale is telling you that your shutter speed needs to be faster than what your camera is capable of doing, you will need to wait to do this assignment a little later in the day when the light isn’t quite as bright.
The next step of this assignment is to do a bracket of the same landscape.
•Set your aperture to f/8 and set the shutter speed according to the lightmeter. Note! Do not take the picture yet.
• Stop your aperture down to f/16 without changing your shutter speed. Now take the picture.
• Open up your aperture to f/11 without changing your shutter speed and take that picture.
• You will do this process of changing the apertures without changing the shutter speeds for five frames.
The last part of this assignment is to repeat the bracket portion of the assignment, but with a person standing in front of a white wall wearing a black top. The person should be small in the frame and the white wall should be filling the frame of the camera and be fully lit. This process will also take five frames.
Below is an image illustrating the fist ten frames of the assignment. The camera settings are below and should give you an idea of what to expect. Note that the white wall is not part of the illustration.
After you have taken the first 15 frames of the roll of film, finish off the roll taking pictures of what ever you want. Have fun.
My goal is to have lab time for processing this first roll of film on January 28th. Lab time for printing on Febuary 4th and 11th. This assignment will be due on February 13th.