mydigitalmodelportfolio

 

 FOCAL LENGTH AND FRAME RATE 1. What is focal length? Focal Length indicates the distance between the centre of a lens and its focus point in millimetres.  2.  What is the visual difference between a low mm lens and high mm lens? A lens with a short focal length gives you a wider field of view.   The higher the mm number on your lens the more narrow the view will be 3.  When do you use a lower mm focal length? When do you use a higher focal length?  Lower mm focal length is used to photograph wider field view such as landscapes. Higher mm focal length is used to photograph close ups and smaller vignette in a landscape scene. 4. V isual examples of low & high mm focal lengths

  Progressive vs Interlaced Scan 1. What is Progressive and Interlaced scan? Progressive scan draws all of the lines in a single frame of video sequentially so that each frame contains a complete image that fills the screen.  In Interlaced scan every other line of an image is displayed in one frame 2. Why does it matter? It is important because bandwidth must be taken into consideration because only a certain amount of data can be transmitted at once. Interlaced video saves bandwidth by only sending half of a complete frame at once.  3. Why should we know the difference? It is important to know the difference between Progressive and Interlaced scan to understand why cable TV has low picture quality and resolution compared to high end TVs and laptops. 

 WHITE BALANCE: 1. What is white balance? White balance helps in balancing the color temperature in an image to make it look more natural. It adds the opposite color to the image in order to bring the color temperature back to neutral.  2. How is color temperature measured? Color temperature is measured in units of  Kelvin  (K). 3.  Why should a photographer know how to change the white balance in their camera? Getting natural-looking colors and skin tones in images is important because it may be difficult to fix or alter it after the picture is already taken. 

 THE CAMERA- SHUTTER SPEED  1. What is shutter speed? Shutter speed is the amount of time that the camera shutter is open, letting light into the camera sensor. It is how long a camera spends taking a photo. 2.  How is it measured? Shutter speeds are usually measured in fractions of a second when they are under a second.  3.  How does it affect exposure?  When using a long shutter speed, the camera sensor gathers a lot of light, and the photograph ends up being quite bright. When using a quick shutter speed, the camera sensor is only exposed to a small amount of light, resulting in a darker image. 4. What is the purpose of a slow shutter speed? Long shutter speeds are used for low light and nigh photography, or to capture movement intentionally. 5. What is the purpose of a fast shutter speed? Fast shutter speeds are used to freeze action within photographs. 6. Find visual examples of slow shutter and fast shutter speeds. SLOW SHUTTER SPEED: FAST SHUTTER SP...

The Camera- ISO and Gain 1.  What is ISO? ISO is the setting that makes your photos brighter or darker. By increasing the ISO number, the picture becomes brighter. 2. What is the visual difference between low & high ISO? High ISO images are much brighter, whereas low ISO images are darker. 3. When do you use a lower ISO? When do you use a higher ISO? Low ISO is used when there is plenty of light, to minimize the appearance of noise as much as possible. High ISO is used to fight against motion blur and to pick up a sharper image. 4. Find visual examples of low & high ISO noise visibility.   ISO 100: ISO 200 ISO 400 ISO 800 ISO 1600 ISO 3200 ISO 6400 \