Prof K Pelka : Monday 6:00 - 9:20

Category: Lab Exercises (Page 5 of 7)

Avar Lab#4

I used the top of a dresser for white and a black desk for black. To get my “exposure” I had to press somewhere on my screen to brighten up an image. I don’t know why they’re so similar. Probably because I’m taking a picture of the same thing only increased brightness at the end of the day.

Week 4: Lab Exercise: How Your Camera Meter Works

Find a piece of black card and a piece of white card. (Something flat that is black or white will do.) Take a picture of each one filling the frame with either black or white using automatic settings.

Next, photograph each one so that the black one looks black and the white one looks white. This accomplished using exposure compensation.

The black card will be over exposed for black and you need to decrease exposure to make it black

The white card will be under exposed for white and you need increase exposure

Put all four images (auto exposures and corrections) in a post using an image gallery. Label images

Include a short description of your process. What did you use for the white and black surfaces? Describe in your own words why the black and white versions look so similar when shot with automatic settings? What did you do to get the black card to look black and the white card to look white.

Post to student post/lab/lab4 meter

Week 4: Lab Exercise: Using Exposure for Effect

Make a standing pile of crumpled pieces paper. Using direct light ( bright light from the clip lamp), adjust the the light so there are different levels of lights and darks in the papers. Light from the side works well.

A) Photograph the paper with dark background, with the paper pile itself having different lights and darks.

  • Frame and compose shot with some background visible
  • Focus and shoot ( this will be an average light reading)
  • Make the image darker by using exposure compensation. On your cellphone, press the part of the scene in the light and that you want to be in focus. Then pull the little sun icon down to make the scene darker until the light areas show detail. If working with a camera, use negative exposure compensation to get the scene to be dark with more detail in light areas
  • Shoot 3 exposures: 1. average reading, 2. slightly darker, 3. darker
  • One of these darker exposures should produce dark areas with some detail in light areas

B) Repeat A but move in closer to make a different composition

C) Photograph paper pile with a light background

  • Frame and compose with some background visible
  • Focus and shoot ( this will be an average light reading)
  • Make the image lighter by using exposure compensation On the cellphone move the icon up. With a camera, use positive exposure compensation. There should be some detail in darker areas but the light areas shouldn’t loose detail
  • Shoot 3 exposures : 1. average reading, 2. slightly lighter, 3. lighter
  • One of the lighter exposures should show light area as light with detail and dark area with some detail

D) Repeat C but move in closer to make a different composition

Upload all images to flickr Lab4 album

In a post Pick the best image from A and B. Explain what you did. Why do you feel this is the best. Use image gallery. Photos should be next to each other. With explanation underneath

In same post,Pick the best image from C and best from D.Explain what you did. Why do you feel these are the best. Use image gallery. Photos should be next to each other. With explanation underneath

Post to student post lab 4 effect

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