Aperture, Shutter Speed, and ISO


Aperture 

1. The aperture is designed like our human eyes. More specifically, the pupil is what we refer to as the  aperture of photography. The size of the pupil determines how much light will go in. This resembles turning the aperture to see how much light will be in the photo.

2. The smaller the Aperture, the larger the f-stop is.  The higher the Aperture, the lower the f-stop is.

3. The aperture effects the Depth of Field because it makes the photo sharp. Also to create depth, it will separate the foreground from the background by making the foreground objects very sharp and fully in focus, while making the background objects blurry so the attention of the photo is drawn towards the front subject. By just changing the aperture, you can control all these things which are key to taking a great photo.
photo taken in F2.8 
photo taken in F16










Shutter Speed
with the sun still up
a) At a booth in the middle of the courtyard near a tree, I would use a slow shutter speed because there is no motion.
b) At a food booth outside under one of the big red awning, I would use a slow shutter speed because the awning would block the light out from the image.
c) The Stars performance inside the gym, I would use a fast shutter speed because there is a lot of motion to capture.
d) students dancing near the center of the courtyard, you would use fast shutter speed because they are in motion when the students are dancing.
e) When people are streaming in from the front door, I would use a fast shutter speed because you would want to capture the crowds movement.
f) At a basketball stand where students are shooting basketballs at a hoop, you would use a fast shutter speed so that you can take a focused image of the basketballs without them being blurry.

with dim environment
a) At a booth in the middle of the courtyard near a tree, you would use a slow shutter speed to capture more light because it's dark outside.
b) At a food booth outside under one of the big red awning, I would use a slower shutter speed in order to express more light on the image due to the dim environment.
c) The Star performance inside the gym, I would use a slow shutter speed in order to create the "motion blur" effect on the people dancing.
d) students dancing near the center of the courtyard, you would use a slow shutter speed because you want to capture a motion blur to create a sense of motion and add a different mood to the photograph.
e) When people are streaming in from the door, you want to use a slow shutter speed to add a blurry effect to the photo in order to create more motion.
f) At a basketball stand where students are shooting basketballs at a hoop, I would use a slow shutter speed in order to capture a blurry look on the basketballs.

Aperture priority setting means that you set the lens aperture, which then automatically sets the shutter speed based on the aperture.
Shutter priority setting is when you set the shutter speed for the image, and the aperture is then automatically selected.
Manual mode setting is when you select both the shutter speed and the aperture manually.
slow shutter speed 
high shutter speed 










ISO

 1. The advantages of shooting in high ISO at a sporting event is so you can capture fast motion shoots without introducing blur to the image. Also more light is being exposed when using a higher ISO.
2. The author suggested to use low ISO when there is plenty of light to capture the most amount of detail and have the highest quality image. Also you can use low ISO in dim and dark environments when necessary.
3. The author suggests to use a higher ISO when there is not enough light in the image and you want to bring out more details. Also use high ISO when you want to capture motion without bringing any blur to the image.

Photo taken at ISO 200 
Photo taken at ISO 3200











DSLR Camera 

 1. The aperture settings available on this camera are 2.8 to 22
2 The shutter speed settings on this camera are from 1 second to 1/4000 seconds.
3. The ISO settings available on this camera are from 100 to 25,600.




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