Explain the “camera obscura” effect. How is it achieved?
If you make a hole in the wall of a completely dark room the light is focused through the hole and the outside scene is projected on the opposite wall.
What invention during the 17th Century helped man get a step closer to creating the modern camera?
In the 17th century Isaac Newton and Christian Huygens studied optics and the process of making high quality glass lenses and eventually perfected the art.
What were the parts of the first modern camera invented by Niepce?
In 1827 Joseph Nicéphore Niépce invented the first modern camera, complete with A glass lens, a dark box, and film.
What do modern digital cameras have in common with Niepce’s camera?
Moderen digital camera's still use the same techniques and the same parts to take a photograph. It's just been a bit, well, modernized.
What do digital cameras use to capture an image?
Digital cameras capture images with a CCD, an electronic sensor, replacing old-fashioned plastic films.
What is the difference between the Auto Mode and the Program mode?
In Auto mode, the camera will completely control flash and exposure while in Program mode you can control flash and sometimes a few other camera settings
What is the Portrait mode used for? How does it work?
Portrait mode is used mainly for portraits, taking pictures of people. The camera will blur the back ground and keep the subject in sharp focus.
What is the Sports mode used for? (not just sports) How does it work?
When you are taking a picture of something in motion, use the Sports mode. The camera will use the highest shutter speed possible to freeze the motion of the subject.
Why should you do a half press on the trigger button?
A half press will tell the camera to focus in on something and to lock the camera's focus on the subject. It allows the photographer to freeze the pint of focus before taking a photo.
What does this symbol mean?
When would you use this?
The symbol shown is a lightning bolt with a circle with a line drawn through it over the bolt. This symbol means the flash is off and you might use it to inflict more emotion into a photograph.
What does this symbol mean?
When would you use this?
The symbol shown is a lightning bolt with the word 'AUTO' shown in small text next to it. This symbol means the flash is on auto, the camera will automatically fire the flash if it thinks the picture needs more light.
What happens to your photo if there is too much light?
With too much light, your photo will be washed out.
What happens to your photo if there is not enough light?
Without enough light the photo will simply be too dark and hard to depict.
What is a “stop.”?
A "stop" is a relative measurement of light.
How many stops brighter is the new planet if there are two sons instead of one?
With two suns instead of one the new planet would be 1 stop brighter.
How many stops brighter is the new planet if there are four sons instead of two?
If the new planet had four suns the planet would be 2 stops brighter.
What affect does a longer shutter speed of have? A shorter one?
If the shutter speed is longer then more light is let in and visa versa
What does the aperture control?
Much like the pupil of a human eye, it controls the amount of light let in.
When adjusting the aperture, how can you increase the amount of light?
To increase the amount of light, open the aperture.
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