Photo webquest
- Digital cameras and film cameras seem completely different. However, the basic principle is still the same. In the place of film, what does a digital camera use to capture the light image?
Replacing the old-fashioned plastic film, digital cameras capture the images with an electric sensor called ad CC. Photos are stored on reusable computer memory devices. - What does the Latin word “camera obscura” mean and what is it?
Camera obscura means "Dark room" in Latin and it was the first camera. The hole acted like a lens, focusing and projecting light onto the wall of the dark chamber. - When shooting with a digital camera, there is often an annoying delay between the time that the shutter button is pressed and the time the digital camera fires to take the photo. What is this frustrating delay called and what measures can be made to avoid it?
The delay between pressing the button and the digital camera firing is called "shutter lag." You can avoid this by using a half- press on the button, this will give you a faster camera response time, more control over focus and encourages better composition, because you tell the camera that you're almost ready. - What button is typically cycled through to access digital camera flash modes? (describe what it looks like)
Lightning - small icon with a lightning symbol - In a low light situation, you would typically need to use a flash. In some situations, however, you may want to turn off the flash. Describe two situations where the flash should be turned off.
1. Can be much more dramatic without flash- not needed 2. Where there already is a lot of light - Editing photos: According to the text, what editing shortcuts should you start with?
A computer and photo editing software - What is exposure?
The measuring and balancing of light through the lense - Why is proper exposure important?
It is important to not have the picture too dark or too light - And what are the three ways to control exposure?
You can control the cameras shutter, aperture, and film speed - Name 2 common wide aperture settings (refers to the size of opening):
F/1.4 and F/2 - Name 2 common small aperture settings (refers to the size of opening):
F/8 and F/5.6 - What aperture settings will achieve a shallow (blurred background) depth of field?
Larger aperture will achieve a shallow DOP. For example F/1.4 - What reason(s) would you want to use this aperture setting?
A large aperture allows a lot more light to fall onto the sensor, and when this happens you have the freedom of using a faster shutter speed. By widening your aperture you have a better chance of the movement being "frozen" in time and the camera wont have time to think about camera shake. Large aperture can give you a crisp DOP. It gives you the opportunity to have your background out of focus giving you clearer focus for the subject close up. - What is ISO?
Level of sensitivity of your camera to available light. - Click on the link to the SIMCAM at the top of the webpage
- SIMCAM shutter and aperture: Play around with the shutter & aperture settings. Which settings do YOU prefer? Why? (discuss depth of field, detail, light, etc... as needed)
Aperture: f/2.8 shutter: 1/250 - SIMCAM film speed: Follow the directions and play around with film speed. What are the noticeable differences in 100ASA film photo compared to that shot with 400ASA film?
100 ASA is more crisp while 400 ASA is grainy - What settings did you have to use to achieve a nice exposure using 400ASA film?
1/150 f/5.6 - SIMCAM camera shake: What settings were needed with the zoom lens to avoid camera shake while also achieving decent exposure?
1/250 f/2.8 - Were you able to get a proper exposure with the zoom lens? Explain.
Yes - What could you do to improve your exposure if you were using this camera & lens? Explain. They said if your zooming the only way to get proper exposer may be to increase the speed.