Camera History and Camera Parts

1. Explain the “camera obscura” effect. How is it achieved?

Inside a completely dark room, a tiny hole is created in one wall. Through the hole light is focused, and the outside scene is projected (upside down) on the opposite wall.

 

2. What invention during the 17th Century helped man get a step closer to creating the modern camera?

In the 17th century, the modern camera came one step closer when Isaac Newton and Christian Huygens perfected the understanding of optics and the process of making high quality glass lenses.

3. What were the parts of the first modern camera invented by Niepce?

Film - 19th century Soon there were small, portable camera obscuras, but an important piece was missing..Then in 1827 Joseph Nicéphore Niépce added the final touch. He added *film* to create the first successful photograph, and the modern camera was born,

 

4.What do modern digital cameras have in common with Niepce’s camera?

It's comforting to know that even the latest digital cameras work the same way as their ancestors: Light passes through the lens, into the camera, and exposes the film. And guess what? The end result is still a photograph.

 

5. What do digital cameras use to capture an image?

Replacing old-fashioned plastic film, digital cameras capture the images with an electronic sensor called a CCD. Photographs are stored on reusable computer memory devices.

6. What is the difference between the Auto Mode and the Program mode?

Operating modes are the most basic, and essentially tell the camera whether to take pictures or display them. Some cameras only have "on" and "off". Operating modes can usually be found on buttons or dials on the camera body.

 

7. What is the Portrait mode used for? How does it work?

Old fashioned cameras have one mode.. manual. Camera settings would have to be figured out by the photographer, along with focus.

typical camera mode dial

Modern cameras can do all this automatically, but sometimes they need help. By choosing a shooting mode you give the camera hints about what you want, and it will try to deliver.

 

8. What is the Sports mode used for? (not just sports) How does it work?

Sports To freeze motion, camera will use the highest shutter speed possible.

9. Why should you do a half press on the trigger button?

Using the half-press is easy, aim your camera directly at the subject and gently press the shutter release button until the camera comes "alive". If you want to take the shot, press down until the camrea fires.

10. What does this symbol mean?

 When would you use this?

Disabled Flash
no flash. There are many cases where you may not want flash at all. The mood of the photograph can sometimes be more dramatic when the natural light is used.

 

11.What does this symbol mean?

When would you use this?

Auto-Flash

In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.

12. What happens to your photo if there is too much light?

In this flash mode, the shutter is kept open longer to expose the background. (Essentially the same as the Party/Indoor shooting mode)

 

13. What happens to your photo if there is not enough light?

When forced, the camera will always fire the flash regardless of necessity.

 14. What is a “stop.”

Its stops the picture when you are taking it.

 

15. How many stops brighter is the new planet if there are two sons instead of one?

The subject of photo editing is often ignored when photography is introduced to beginners, but it is a powerful tool for enhancing your images, and well worth the effort. You don't have to be a computer expert either, great effects can be created in seconds once you know a couple shortcuts.

 

16. How many stops brighter is the new planet if there are four sons instead of two?

Its going to take a lot more because there are more of them to stop.

 

17. What affect does a longer shutter speed of have?

Have a bigger and better picture so you can zoom in more.

 

18. What affect does a shorter shutter speed have?

That it take way more faster picture then the big ones. 

 

19. What does the aperture control?

Aperture is referred to the lens diaphragm opening inside a photographic lens. The size of the diaphragm opening in a camera lens REGULATES amount of light passes through onto the film inside the camera the moment when the shutter curtain in camera opens during an exposure process. The size of an aperture in a lens can either be a fixed or the most popular form in an adjustable type (like an SLR camera). Aperture size is usually calibrated in f-numbers or f-stops. i.e. those little numbers engraved on the lens barrel like f22 (f/22),16 (f/16), f/11, f/8.0, f/5.6, f/4.0, f/2.8, f/2.0, f/1.8 etc. Each of this value represents one time the amount of light either more or less in quantity. Meaning to say, f/16 will let in 1X the amount of light than a diaphragm opening of f/22 and so forth; while on the other hand, an aperture of f/4.0 will let in 1X lesser than that of f/2.8 etc.

 

20. When adjusting the aperture, how can you increase the amount of light?

When you hit the shutter release button of your camera a hole opens up that allows your cameras image sensor to catch a glimpse of the scene you’re wanting to capture. The aperture that you set impacts the size of that hole. The larger the hole the more light that gets in – the smaller the hole the less light.