Friday, September 12, 2014

Aperture, Shutter Speed, ISO

Aperture, Shutter Speed, ISO

The next lesson in our use of the camera and how it works involves what is commonly referred to as the "three pillars of photography." They are Aperture, Shutter Speed and ISO.

Today we are going to learn about all three and how they impact our photography.

Let's start with Aperture as it is probably the hardest of the three to full understand.

Go to this website and read about Aperture:

http://mansurovs.com/what-is-aperture-in-photography

Once you are done reading - I want you to use google and find me an example of a photo taken at aperture setting F2.8 and an example of a photo taken at F16 or higher. DO NOT USE the photos on the website I sent you to, find different ones. Post those photos on your blog and label them.




   




Then answer the following questions:

1. What part of the body should we closely relate aperture?
2. Finish this sentence - the smaller the Aperture the higher the f stop number , the higher the Aperture the smaller the f stop.

3. In your own words tell me how aperture impacts Depth of Field?
a lower apertuer will isolate the subject from the background.
2.8

F16

Shutter Speed:

1.
beginning of the night (early evening):
a) To shoot a booth in the middle of the courtyard while it was still light out, you could use a slower shutter speed,  1/125.

b)  For a booth under the red awning, you could still use a slow shutter speed like 1/125 or 1/250.
c)  For the Silver Stars performance you would need a faster shutter speed to be able to capture motion, 1/500 or or 1/750
d)  To shoot students dancing in the courtyard you would still need a fast shutter speed like 1/500 to capture the motion.
e)  To capture people streaming in the front doors, you would need a fast shutter speed still, 1/350
f)  In order to capture people shooting basketballs at a hoop, you would use a shutter speed like 1/750.
end of the night (after sunset):
a)  Once it's dark out, you would need a longer shutter speed to shoot a booth in the courtyard, 1/30 or even longer
b)  For a food booth under the awning you would still need a slow shutter speed like 1/ 30
c)  The Silver Stars performance inside the gym would still need a fast shutter speed like 1/750
d)  To capture students dancing in the courtyard while it's dark out, you would need a shutter speed of 1/125
e)  For people coming in the front doors you would need a shutter speed of 1/150
f)  For the basketball booth, you would need a shutter speed of 1/250 to capture the motion.
2.  The three settings for shutter speed on a camera are aperture priority (you set the aperture, the camera automatically sets the shutter speed), shutter priority (you set the shutter speed, the camera automatically sets the aperture), and manual (you set both shutter speed and aperture.
high shutter

lower shutter
 
ISO:
1.  Shooting at a higher ISO at a sporting event is good because you will better capture motion rather  than with a low ISO.  It is also usually darker at sporting events and shooting with a high ISO let's in more light than a lower ISO so you can get a better photo.
2.  Suggestions made about using a low ISO was to use low ISO in well-lit conditions or if you are not trying to capture motion and to try and stick to the base ISO as much as possible.
3.  Suggestions made about using high ISO was to use a high ISO in areas that aren't so well-lit, if you are capturing motion, and to try and stay at 800 or below if possible.

ISO 200

ISO 6400

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