Wednesday, March 27, 2013

Daily Quiz

1) What is another term for "Green Screen"?
     >Chroma Key or Color Key
2) Does the screen have to be green? What other colors would work and why?
Not necessarily, as long as the screen is a different color than what the person or object has. The most common ones are blue or green because most people don't wear those colors.

Monday, March 25, 2013

Daily Quiz

What is it called when we add:
1) Black to a pure color? Shades

2) Grey to a pure color? Tones

3) White to a pure color? Tints

Color Theory Shooting Challenge




Intro to Color Theory

1) What are the 3 primary colors?
red, blue, yellow

2) How are secondary colors created? Cite an example
>By mixing primary colors
      ex. red+blue= violet blue+yellow= green yellow+red=orange 

3) How are tertiary colors created? Cite an example
>By mixing secondary colors
       ex. violet+green= aqua blue green+orange= yellow/green orange+violet= red/dark pink

4) What is the difference between subtractive and additive color models?
>Subtractive= Pigment Generated(red, green, yellow)
>Additive= Light Generated (red, green, blue)

5) How can color affect our perception? 
Color affects the way we see things, for example, blue is a rare occurrence in nature so we have no appetite response to blue food. Another example is the color pink. Pink is a tranquilizing color that drains energy(used in prisons and holding cells)

6) How does one color affect another? 
Color intensity changes in relation to its surrounding color. 
>ex: red ink on black paper vs. red ink on magenta paper 

Find an example or show an example of a greyscale image

Find an example or show an example of a monotone image. 


Find an example or show an example of an image that uses complimentary color.

Thursday, March 14, 2013

Daily Quiz

1) get as small of an f-stop as you can and make sure the iso is low because the higher the iso, the less dof you will get
2) bokeh

Tuesday, March 12, 2013

Exposure Principals


ISO 





ISO-  determines the sensor's sensitivity to light. When using the lowest ISO rating (100), you can see that the image will be darker than when using 400 or 600. When you set the rating to 6400 the image will be brighter. I set up the camera with a tripod to get the best results, and switched the ISO rating to get a picture of each rating. In the first picture you can see the difference between the green and the white SC letters when the ISO rating increases. The second picture shows all of the ISO ratings in one picture . 
Aperture- Controls the lens' diaphragm, which also controls the amount of light entering the lens. A larger aperture reduces the area of sharp focus and a smaller aperture expands the are of sharp focus. It is represented by the f number. I used a larger aperture to focus more on the checker pieces than the persons face.
Shutter Speed- The cameras shutter opens and closes to let light in. When shooting an action shot it is better to use a fast shutter speed because it freezes the movement. If I were to use a slower shutter speed , the image would have motion blur and we want to avoid that. In my picture I had the person move her head side to side and I was able to freeze the motion, focusing on her head. 

Monday, March 11, 2013

HDRI Exercise

Before 

 After

 Before

After

Before

After 

HDRI (High Dynamic Range Imagery) allows greater range between the light and dark areas of an image. A good example of this is the last "mock" image, you can see that by changing the the layers, shadows are brought out more and it gives the image more of a pop. HDR photography has a painter effect and that is what pulls out the details as well.  In HDRI, the light values can be modified and represent the range of the intensity levels seen by the human eye. Most HDRI is of landscape because it is easier to take multiple shoots where as taking a portrait is harder for the canvas to stay still.

Friday, March 1, 2013

Daily Quiz-- Aperture

The aperture changes the amount of light that goes in when taking a picture. A large aperture allows a lot of light to enter the camera so the picture will be brighter then if you where to use a small aperture. This is handy with depth of field, if you use a large aperture you can choose to focus on the background and blur the foreground & vice versa.

Rule Of Thirds Field Mission

A person facing the camera, closeup on head

 A person facing the camera, closeup on head, looking upper right or left

A person facing the camera, closeup on head, turned 45 degrees from camera, not looking at camera

 Two people, closeup on heads, looking upper right or left

 Two people facing camera, closeup on heads looking at camera

 Two people, one in the foreground, one in the background out of focus (depth of field) 

Two people, one in the foreground, one in the background in focus (depth of field) 

An object or objects

A landscape view

A tree

Grid