Intro. to Digital Photography Study Guide

Transcription

1 Intro. to Digital Photography Study Guide TEST on Wednesday, Nov. 11th 1. L.C.D. Liquid Crystal Display screen 2. All images captured by a digital camera become electronic documents. 3. Why is digital photography more environmentally friendly than traditional photography is? Because no chemicals are used to create pictures, there is no need to dispose of harmful substances. 4. What does an "image sensor" do? It captures and stores pictures. 5. What is the camera's "shutter speed"? the length of time the shutter of the camera is open and allows light to strike the image sensor 6. The word, "pixels," is short for " picture elements." 7. What are "pixels"? millions of tiny squares that compose the image 8. How does this differ from traditional photography (film)? Because film has small dots that make up an image, known as grain. 9. Digital camera resolution quality is often measured how? megapixels 10. Mega pixels is how many pixels? A million 11. Higher the megapixels the better off you are. 12. What is "resolution"? the number of pixels contained in a photographic image. 13. To get a closer frame cropping, what feature on your camera should you use? Zoom-in 14. High resolution pictures take up an enormous amount of memory space. 15. High resolution pictures are sharper than low resolution pictures. 16. Enlarging an image to five times the original size will cause image quality to degrade. 17. When you "crop" a picture, what do you do? You cut out parts of the image that you do not want to include in the picture. 18. What is recycle or lag time? The amount of time it takes the camera to process and store an image when shooting in normal mode. 19. Pressing the shutter button halfway does what? Auto focuses 20. Macro mode icon is a _tulip. (at right)

2 21. How does Macro work? Put function on macro then just get close to your subject. 22. Small Resolution S 640 x 480 Pixels is great for GREAT for websites because it is a monitor resolution. 23. Large Resolution L 4000 x 3000 Pixels is capable of huge prints and cropped, photo-quality 8 x 10 s from a fraction of the original image file. 24. Resolution differences in size: small 640 x 480, medium (can range) 1078 x 760, and large 2048 x Continuous Shooting Mode/Rapid Fire/Burst Mode- This feature allows you to take multiple rapid-fire shots with one touch of the exposure button. This can be very useful feature when shooting subjects in motion, such as during a sporting event. The icon looks like multiple rectangles. 26. JPEGs (.jpg) Most common digital camera image format used for images with continuous tone changes such as photos. (* This is the one we will be using) 27. PSDs (.psd)- a photoshop native document, Saves all the layers so you can return and work back on the layered file. 28. PDF (.pdf)-stands for Adobe Acrobat s Portable Document Format, a system for creating documents that can be read cross-platform. 29. Cross-platform means can be used on both MAC and PC computers. 30. CCD Raw (.raw) An uncompressed image format that contains all of the data picked up by the image sensor. Professional Photographers use this one. 31. File Management: You should NEVER label your images by date OR leave them as IMG_001, IMG_002, etc. 32. Label your finished project: ALWAYS with your last name then project name. 33. In order to transfer images from camera to computer what mode does the camera have to be on? Camera MUST be on and in preview mode. 34. The Rule of Thirds is a principle of composition used for centuries by painters, photographers and other artists. The main subject is placed off center, away from the middle of the frame. As a result, photos often look more dynamic and interesting 35. Three major elements in a photograph: 1 - Foreground, 2 - Middle-ground, and 3 Background. 36. Know what a photo using the Rule-of-Thirds would look like. 37. Be able to identify a photos Foreground, Middle-ground, and Background

3 38. Which tool in Photoshop would you use for what: Mover tool-only good to move your image Rectangular Marquee tool-to make a selection Quick Selection tool-use when you have multiple colors but have a border. Magic Wand tool-selects any solid/flat colors easily Edit>Copy and Edit>Paste from one image to another.

4 Study Guide Answers 1. Digital photography eliminates the need to develop pictures. True or false? 2. Where does a digital camera store the images that it takes? on a floppy disk, on a memory card, or on a compact disk 3. Memory cards cannot be reused. True or false? false 4. Where can pictures be transferred, once a memory card is filled? to a computer 5. CDs hold less information than a floppy disk does. True or false? false/ They can store much more information. 6. Where can a photographer see the picture that he or she is about to take? on a small display screen 7. Digital pictures can be posted on the Internet in moments. True or false? 8. All images captured by a digital camera become documents. electronic 9. Why is digital photography more environmentally friendly than traditional photography is? Because no chemicals are used to create pictures, there is no need to dispose of harmful substances. 10. What does an "image sensor" do? It captures and stores pictures. 11. Image sensors are. silicon chips 12. What is the camera's "shutter speed"? the length of time the shutter of the camera is open and allows light to strike the image sensor

5 13. What are "pixels"? millions of tiny squares that compose the image 14. The word, "pixels," is short for "." picture elements 15. Each pixel is captured by a single. photosite 16. "Resolution" is. the number of pixels contained in a photographic image 17. Low resolution pictures are sharper than high resolution pictures are. True or false? false/ High resolution pictures are sharper. 18. Digital camera resolution quality is often measured how? in terms of "mega pixels" 19. High resolution pictures take up an enormous amount of. memory space 20. What three things do all digital cameras set for you? focus, exposure, white balance 21. To get a closer frame cropping, what feature on your camera should you use? the "zoom-in" feature (or telephoto button) 22. What feature prevents blurry or fuzzy pictures? auto-focus 23. You can take elements from one picture and add them to another picture. True or false? 24. Reducing what will make a picture smaller in size? the number of pixels 25. Enlarging an image to five times the original size will cause image quality to. degrade 26. When you "crop" a picture, what do you do? You cut out parts of the image that you do not want to include in the picture. 27. Your home printer can be used to print your digital pictures. True or false?