LA – Photography Exposure Basics, Part 1 (week 8)

Observation and analysis

After reading the appropriate section in your prescribed textbook From Snapshots to Great Shots, please answer the following questions: 

1. Name all the functions / buttons on the front of your camera
2. Name all the functions / buttons on the back of your camera

I have a Nikon D300. There isn’t a book From Snapshots to Great Shots for Nikon D300 but we were comparing the camera models and ended up to get the book for Nikon D5000. It would have all the same functions than Nikon D300 has. Nikon D300 just has still a bit more. So I ended up reading the manual book as well.

 

Camera_functions

3. Explain how you would set the correct ISO

The lower number for ISO you select the less sensitive the sensor in your camera gets for the light and the other way around. The Iso is very useful when shooting in low-light conditions, but the downside is that the high ISO number is increasing grain or noise in your images. That’s why it is recommended to use the lowest ISO number as possible when shooting. This to avoid the noise in the images.

The ISO setting in your camera allows you to choose the level of sensitivity of the camera sensor to light. (Nikon D5000, From Snapshots to Great Shots, p. 9)”

4. Explain how you would change the aperture

If the image is too bright or you want to have more depth of field pick a higher f-stop. If the image is too dark or you want to have less depth of field, pick a lower f-stop.

The aperture is a circular opening made by a set of blades inside the lens. It can be adjusted from small to big and that controls how much light will enter the camera. Aperture is measured by f-stops. A high f-stop (for example f-22) means that the aperture hole is small, and with a low f-stop (like f-1.4) means that the aperture is wide open.
Aperture also affects to the depth of field. With a low f-stop you will also get a smaller depth of field. That means that you are letting more light into the sensor and less in the images will be in focus and opposite around.

5. Explain how you would change the shutter speed
The shutter speed controls the length of time that light is allowed to hit the sensor. The lower the shutter speed is, the more light you let into the sensor and the brighter the image will be. The higher the shutter speed is, the less light you let in to the sensor and the image will be darker.

With the shutter speed you can also control the motion blur in the picture. If you try to take a picture with a slow shutter speed (for example 1/30th of a second) and the subject is moving fast, your subject will be blur. With a fast shutter speed (for example 1/500), you can freeze the moving subject in your picture.

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