how photography and cameras work

This part of a camera is called......
1. Shutter
2. Aperture
3. f-stop

A DSLR or Digital Single Lens Reflex camera

To focus correctly using auto focus, compose your photo by looking through the viewfinder. 

While holding your camera on the most important part of the photo, press the shutter button half way down. When the camera is focused, you will see a red  dot or rectangle and hear a beep.  

To take the photo, press the shutter button all the way down. 

An SD Card (Secure Digital Card) is an ultra small flash memory card designed to provide high-capacity memory in a small size. SD cards are used in many small portable devices such as digital video camcorders, digital cameras, handheld computers, audio players and mobile phones.

Watch together

https://www.youtube.com/watch?v=ED-KnFL_J7Y

1. What was added to a camera obscura to project a sharply focused image?

2. How is the iris of the human eye similar to the opening (aperture) of a camera lens? The iris is smaller when there is ____________of light, and larger in _______________ light.

3. A shutter is the part of a camera that controls the length of _____________ that light is allowed to enter the camera

4. A viewfinder is the part of a camera that allows the photographer to view the ________________ that will be captured when the photo is taken.

5. Correct exposure is an image that is not too dark and not too light. This is achieved by letting the right amount of light (controlled by ___________________________) collect on the sensor or film for the right length of _________________, which is controlled by the how __________shutter is open.

ISO setting: In digital photography ISO measures the sensitivity of the image sensor; the lower the number the less sensitive your camera is to light. If your light source is bright, such a a sunny day, you can use a lower ISO than if your light source is low, such as a dimly lit restaurant.

Which exposure is correct?

other videos

more detailed explanations

https://www.youtube.com/watch?v=qS1FmgPVLqw

https://www.youtube.com/watch?v=z3h1F99woDU

what is aperture

https://www.youtube.com/watch?v=S4bjCeDPs2s

what is shutter speed

https://www.youtube.com/watch?v=1M17VDK0Ysg

shutter speed, aperture and ISO and light
https://www.youtube.com/watch?v=F8T94sdiNjc&t=3s

If you cut a pizza into 2 slices and you ate one slice, how much of that pizza would you have eaten? If you cut the pizza into 8 slices, and you ate one slice, how much of the pizza would you have eaten?

Which slice of pizza is bigger, 1/2 or 1/8?

watch on your own and answer questions 6-10.
aperture, shutter speed and ISO

https://www.youtube.com/watch?v=pehFC05cohw

6.  Which lens opening, in terms of size, is larger, f2 or f16?

7.  Which aperture will have the sharpest background, f2 or f16?

For all you geniuses, why?

8. Which shutter speed is the fastest, 1/4 or 1/250?

9. Which shutter speed would you want to use if you are photographing a running football player and you want to "freeze" action?

10. At which ISO setting does the narrator say the photo becomes "unusable"?