What is shutter-speed
Shutter speed (also known exposure time), stands for the length of time a camera shutter is open to expose light into the camera sensor. The faster the shutter speed, the easier it is to help freeze action completely, as seen by the picture of two birds.
However if the shutter speed is slow, it can create an effect called motion blur, where moving objects appear blurred along the direction of the motion, and can be used in things like advertisements for cars, motorbikes and nature, as seen below of the water.
I experimented myself with this blurred effect within school and this was the outcome:
I later tried using a long shutter speed at night on the road, to capture the lights of cars to a greater affect, and really produce a contrast between the darkness and the light. These were my outcomes:
Editing Photos In Photoshop
I had a go at editing some photos with the software called Photoshop, to see if I could enhance the looks of certain pictures with a few tweaks to their settings.
These were my results:
Before and after the picture has been edited (Edited top and unedited bottom).
Before and after edited on Photoshop (Top image edited bottom unedited).
How did I edit them?
To edit my photos I went into the image and adjustments tab, located at the top of the screen, and selected what I wanted to edit
BRIGHTNESS/CONTRAST
EXPOSURE
LEVELSZone System
Above I used the Ansel Adams zone system (seen beneath), to identify the different areas of types of exposure, meant allow the photo to have the best contrast between light and dark as possible within the picture.
What is the Ansel Adams 'Zone System'?
The Zone System is a technique that was formulated by Ansel Adams and Fred Archer back in the 1930's. It is an approach to a standardized way of working that guarantees a correct exposure in every situation, even in the trickiest lighting conditions, such as black lighting, extreme difference between light and shadow areas of a scene, and many similar conditions that are most likely going to throw off your camera's metering, giving you a completely incorrect exposure.
Within this photo shoot, I messed around with the exposure settings on my camera to see which number displayed the piece of paper most effectively.
Within Photographs, exposure determines how light or dark an image will appear when it had been captured by the camera and viewed. This can be determined through aperture, ISO and shutter speed, which can be located on your camera and seen in the exposure triangle below. However you need a combination of all three to make the perfect exposure. If too little light is let into the picture, it will become too dark and underexposed, and the same with letting too much light into it as the image will become too bright and overexposed.
What is ISO?
ISO (International Standards Organization) is the level of light at which your camera is sensitive to, the lower the number the less sensitive your camera is to light. Compared to a higher one, where it becomes more sensitive. A lower one can be used for taking pictures on a sunny day, whereas a higher one can be used to take night shots. ISO speed examples range from ISO 100 to ISO 3200, the higher the ISO the higher the noise present within the picture, so when taking a picture you must take into account the light present where you are.
What does ISO effect?
Noise: The amount of noise directly affects the quality of the image, a higher noise will make the image more grainy and decrease the quality, compared to a lower one retaining all its quality. The is directly affects by how high the ISO is, for example, a ISO of 3200 will have a grainier image compared to a lower one with a crisp image.
Exposure: The ISO determines hows well exposed the photo will be by changing the sensitivity. The ISO scale is like the shutter speed, as when doubled the exposure is also doubled, as they are proportional to each other
Aperture: It is affected by the amount of light that travels through the hole in a lens, the larger the hole, the more light is passed to the camera sensor. This controls the depth of field which is the proportion of the screen that seems sharp. Aperture is usually expressed in f numbers, known as the focal ratio.
I decided to experiment with this idea, and so focused on taking pictures of the same object with different ISO settings, these were my results:
Contact Sheets
Beneath is what is called a contact sheet, in which we can use to present multiple pictures taken in a shoot to easily pick, or present our favorite photos taken.
How to make a contact sheet
Upload images onto Bridge.
Select the images wanted using Ctrl Right Click.
Locate the tool drop down box at the top of the screen, and select Photoshop and Contact Sheet II.
From there you can customize the presentation of the contact sheet, (How many column/rows) and click OK to confirm your decision.
White Balance
White balance is the process of removing what we perceive as 'white', and what is rendered white onto our cameras, into the photo taken (as seen above).
We may need to adjust white balance when wanting to take a picture of scenery that we wish to have a warm glow to, or maybe use it to emphasize the blue of ice within it. The white balance button can be located above the navigation buttons on the camera, from which multiple options can be chosen.
However if the shutter speed is slow, it can create an effect called motion blur, where moving objects appear blurred along the direction of the motion, and can be used in things like advertisements for cars, motorbikes and nature, as seen below of the water.
I experimented myself with this blurred effect within school and this was the outcome:
Before and after the picture has been edited (Edited top and unedited bottom).
Before and after edited on Photoshop (Top image edited bottom unedited).
How did I edit them?
To edit my photos I went into the image and adjustments tab, located at the top of the screen, and selected what I wanted to edit
BRIGHTNESS/CONTRAST
EXPOSURE
LEVELS
Zone System
Above I used the Ansel Adams zone system (seen beneath), to identify the different areas of types of exposure, meant allow the photo to have the best contrast between light and dark as possible within the picture.
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What is the Ansel Adams 'Zone System'?
The Zone System is a technique that was formulated by Ansel Adams and Fred Archer back in the 1930's. It is an approach to a standardized way of working that guarantees a correct exposure in every situation, even in the trickiest lighting conditions, such as black lighting, extreme difference between light and shadow areas of a scene, and many similar conditions that are most likely going to throw off your camera's metering, giving you a completely incorrect exposure.
Within Photographs, exposure determines how light or dark an image will appear when it had been captured by the camera and viewed. This can be determined through aperture, ISO and shutter speed, which can be located on your camera and seen in the exposure triangle below. However you need a combination of all three to make the perfect exposure. If too little light is let into the picture, it will become too dark and underexposed, and the same with letting too much light into it as the image will become too bright and overexposed.
What does ISO effect?
Noise
