Chapter 1 Flashcards
What is Camera Obscura:
First camera ever made, it looks like a box
What is a Pixel?
A pixel derives from an image. It is one of the many components of an image seen on a screen. So when the term pixelated comes up, it means that the pixels within the images are easily noticeable. It is what illuminates an image on a screen.
What is a Sub Pixel?
A pixel is composed of three sub pixel. So a sub pixel is part of a pixel, in fact it is what makes up a pixel. Within a pixel it is composed of one red, blue and green subpixel.
What is a CCD?
high quality imageing sensor
The components that are the foundation of photography?
The components that are the foundation of photography would be lighting. Without lighting, nothing would look right. In fact without light, we would all be blind…
What were the first two digital cameras to break the sub-$1000 barrier? What year did this take place?
Samsung and Cannon
List the fields that the CCD’s have revolutionized.
photography and astronomy, astronomers use their CCDs for their telescopes.
Why did George Smith and Willard Boyle not get the credit they deserved?
convinced that they were not the creaters because it was not an origional idea, they were aiming to build something else, not a CCD
Explain how a digital camera captures a moment or scene.
A digital camera used photosensors to be able to capture something. It is kind of like a grid. Each sensor is struck by an electrical current when the light enters the body of the camera. The shutter on the camera (kind of looks like an eye) is what brings the light into the camera. The camera’s inners can combine the different kinds of light to be able to make a certain kind of composite pattern of data that represents the incoming light. So technically the camera is making a binary file. A file composed of two parts. It is composed by ones and zeros. the camera is basically like a computer and its language is binary. 1011101010001010001010. Even though we cannot see an image in ones and zeros, the computer can and it shows us the image. In order to store these files, cameras either have a RAM card or a hard drive. It can also be known as an SD card. But some can come with their own memory. Meaning Secure Digital memory card.
Why is the current marketing battle, in point-and-shoot camera category, all about feature
Consumers are all about appeal. If something looks very modern and looks as if it is good quality then the consumer is most likely going to buy that product. However if something does not look like it is good quality and is relatively cheap, then the consumer is most likely not going to buy that. Photographers want to quality in their photographs. If the photograph come out bad, then how is the photographer going to get any money? it all counts on how good something look. Also I believe that consumers should be more focused on how well something cans shoot. then again if they see a bad camera (appeal) with an impeccable shooting feature they might buy the camera.
What features would you look for in a camera?
whatever
List six conveniences of digital photography.
You can clearly see what you are shooting.
There is no need for film
You can import fast and easily to your computer
You do not need to wait for the film to be developed.
You can actually see what you shot instead of guessing that it was a good photo.
The photograph can be edited and retouched.
Compare traditional film photography to digital photography. Describe three differences between the two formats.
Traditional film was the one who had basically created digital photography. In traditional photography, the image that has been taken is true and real, unlike digital photography, the image can altered and changed either through the computer or the camera. The digital photographs can lose their touch after a while and they tend to fade, however the traditional photograph does not lose its touch, it has a longevity that has a span much longer than the digital camera. But in digital photography, photos can be produced much faster and easier compared to the traditional photography.
Ultimately, what is the most important reason for switching from film to digital photography?
longevity of the photography.
Which reason to convert to digital photography do you find most convincing?
longevity, productivity, accessibility, costs less etc.
Point and Shoot Camera:
longevity, productivity, accessibility, costs less etc.
Define SLR:
single lens reflext digital camera
What is the problem with digital cameras built into cell phones?
not a big enough image senser, slower shutter speed delays
List four advantages digital SLR cameras have over other camera types
better quality, better light, RAW mode, etc.
Explain the tradeoff between pocket-sized point-and-shoot cameras and larger SLR cameras
The different sensor sizes between the cameras are just tradeoffs. ize isn’t necessarily all-around better than another, so you need to consider how the pros/cons of each will fit into your intended shooting style
Autofocus:
obvious
Autoexposure:
obvious
Automatic white balance:
obvious
List, in the correct order, the steps you should take when taking a photograph in full automatic mode.
1, turn camera on and set to automatic 2, frame the image 3, autofocus 4, autoexposure 5, auto flash 6, automatic white balance
in general when you frame your subject, arrangement. Thats it, arrangement.
When using your digital camera in automatic mode, what decisions does the camera make for you?
the camera adjusts itself based on what it thinks the settings should go to. A setting to make sure it captures light a steady level. It can make the decision to adjust exposure, lighting, etc.
How can you increase your chance at taking better photos?
obvious
When in full auto mode, why does the camera adjust the white balance settings?
you haven’t told it do anything else, does it so that it gets appropriate color
Why is it important to always check your camera’s settings before taking any photos?
obvious
Why should you press the shutter button halfway down rather than quickly jabbing the button all the way down?
it does an autofocus lock, light meter, device to use to figure out exposure.
Histogram:
graphical distribution of light or brightness. It is a graph
